The Celtics, for their part, find themselves constrained by design by the NBA's collective bargaining agreement.

The Boston Celtics are members of the Eastern Conference in the NBA. The franchise was founded in 1946 as one of the original eight teams. The team has won 18 championships, 11 conference titles ...

Photo by Erin Clark/The Boston Globe via Getty Images) The Boston Celtics picked the worst possible time to kick off their first losing streak of the season. On Christmas Day, in front of a ...