![Steven Senne Boston Celtics head coach Joe Mazzulla calls to his players during the second half of Game 2 of the NBA Finals basketball series against the Dallas Mavericks, Sunday, June 9, 2024, in Boston. (AP Photo/Steven Senne)](https://mapi.associatedpress.com/v2/items/b0454d8c2ce14dd2953ff1a8e1ad94e0/preview/preview.jpg?s=680x)
Boston Celtics head coach Joe Mazzulla calls to his players during the second half of Game 2 of the NBA Finals basketball series against the Dallas Mavericks, Sunday, June 9, 2024, in Boston. (AP Photo/Steven Senne)
![Michael Conroy Boston Celtics head coach Joe Mazzulla watches from the bench during the first half of Game 4 of the NBA Eastern Conference basketball finals against the Indiana Pacers, Monday, May 27, 2024, in Indianapolis. (AP Photo/Michael Conroy)](https://mapi.associatedpress.com/v2/items/901782bf4d674092a3a4492159807126/preview/preview.jpg?s=680x)
Boston Celtics head coach Joe Mazzulla watches from the bench during the first half of Game 4 of the NBA Eastern Conference basketball finals against the Indiana Pacers, Monday, May 27, 2024, in Indianapolis. (AP Photo/Michael Conroy)
![Charles Krupa Boston Celtics coach Joe Mazzulla calls to players during the first half of Game 1 of the basketball team's NBA Finals against the Dallas Mavericks, Thursday, June 6, 2024, in Boston. (AP Photo/Charles Krupa)](https://mapi.associatedpress.com/v2/items/c54ba126f13d438bb677e1f5b6782887/preview/preview.jpg?s=680x)
Boston Celtics coach Joe Mazzulla calls to players during the first half of Game 1 of the basketball team's NBA Finals against the Dallas Mavericks, Thursday, June 6, 2024, in Boston. (AP Photo/Charles Krupa)
![Julio Cortez Boston Celtics head coach Joe Mazzulla watches play during the second half in Game 4 of the NBA basketball finals against the Dallas Mavericks, Friday, June 14, 2024, in Dallas. (AP Photo/Julio Cortez)](https://mapi.associatedpress.com/v2/items/ed244e5389054bc0b81e5a8ec31ef578/preview/preview.jpg?s=680x)
Boston Celtics head coach Joe Mazzulla watches play during the second half in Game 4 of the NBA basketball finals against the Dallas Mavericks, Friday, June 14, 2024, in Dallas. (AP Photo/Julio Cortez)
![Steven Senne Boston Celtics head coach Joe Mazzulla, center, talks with his players during the first half of Game 2 of the NBA Finals basketball series against the Dallas Mavericks, Sunday, June 9, 2024, in Boston. (AP Photo/Steven Senne)](https://mapi.associatedpress.com/v2/items/8fd4815791c34fa494536a3aa299905b/preview/preview.jpg?s=680x)
Boston Celtics head coach Joe Mazzulla, center, talks with his players during the first half of Game 2 of the NBA Finals basketball series against the Dallas Mavericks, Sunday, June 9, 2024, in Boston. (AP Photo/Steven Senne)
![Tony Gutierrez Boston Celtics head coach Joe Mazzulla, left, and assistant coach Sam Cassell react during the first half in Game 3 of the NBA basketball finals against the Dallas Mavericks, Wednesday, June 12, 2024, in Dallas. (AP Photo/Tony Gutierrez)](https://mapi.associatedpress.com/v2/items/a4796684ed264922abeaf0ca624bdb05/preview/preview.jpg?s=680x)
Boston Celtics head coach Joe Mazzulla, left, and assistant coach Sam Cassell react during the first half in Game 3 of the NBA basketball finals against the Dallas Mavericks, Wednesday, June 12, 2024, in Dallas. (AP Photo/Tony Gutierrez)
![Julio Cortez Boston Celtics head coach Joe Mazzulla signals to players during the first half in Game 4 of the NBA basketball finals against the Dallas Mavericks, Friday, June 14, 2024, in Dallas. (AP Photo/Julio Cortez)](https://mapi.associatedpress.com/v2/items/f2ed2bbbac7a4c49ae0d8681890379e3/preview/preview.jpg?s=680x)
Boston Celtics head coach Joe Mazzulla signals to players during the first half in Game 4 of the NBA basketball finals against the Dallas Mavericks, Friday, June 14, 2024, in Dallas. (AP Photo/Julio Cortez)
![Michael Conroy Boston Celtics head coach Joe Mazzulla celebrates with forward Jayson Tatum, left, after Game 4 of the NBA Eastern Conference basketball finals against the Indiana Pacers, Monday, May 27, 2024, in Indianapolis. The Celtics won 105-102.(AP Photo/Michael Conroy)](https://mapi.associatedpress.com/v2/items/fe8d42b5331745718b36d3a49b2c1829/preview/preview.jpg?s=680x)
Boston Celtics head coach Joe Mazzulla celebrates with forward Jayson Tatum, left, after Game 4 of the NBA Eastern Conference basketball finals against the Indiana Pacers, Monday, May 27, 2024, in Indianapolis. The Celtics won 105-102.(AP Photo/Michael Conroy)
![Charles Krupa Boston Celtics head coach Joe Mazzulla, center, speaks to his players during a timeout in the first half of Game 5 of the NBA basketball finals against the Dallas Mavericks, Monday, June 17, 2024, in Boston. (AP Photo/Charles Krupa)](https://mapi.associatedpress.com/v2/items/e804affc710248d4b8d4f2633e724525/preview/preview.jpg?s=680x)
Boston Celtics head coach Joe Mazzulla, center, speaks to his players during a timeout in the first half of Game 5 of the NBA basketball finals against the Dallas Mavericks, Monday, June 17, 2024, in Boston. (AP Photo/Charles Krupa)
![Julio Cortez Boston Celtics head coach Joe Mazzulla arrives at American Airlines Center prior to Game 4 of the NBA basketball finals against the Dallas Mavericks, Friday, June 14, 2024, in Dallas. (STF Photo/Julio Cortez)](https://mapi.associatedpress.com/v2/items/259d955ad1d84bc0ad3e35c623d05156/preview/preview.jpg?s=680x)
Boston Celtics head coach Joe Mazzulla arrives at American Airlines Center prior to Game 4 of the NBA basketball finals against the Dallas Mavericks, Friday, June 14, 2024, in Dallas. (STF Photo/Julio Cortez)
![Charles Krupa Boston Celtics coach Joe Mazzulla calls to players during the first half of Game 1 of the basketball team's NBA Finals against the Dallas Mavericks, Thursday, June 6, 2024, in Boston. (AP Photo/Charles Krupa)](https://mapi.associatedpress.com/v2/items/728fc9d2513f4bbb823e971d997056a1/preview/preview.jpg?s=680x)
Boston Celtics coach Joe Mazzulla calls to players during the first half of Game 1 of the basketball team's NBA Finals against the Dallas Mavericks, Thursday, June 6, 2024, in Boston. (AP Photo/Charles Krupa)