moondog80 said:
Again, what specifically is the issue the Celtics have that the Red Sox and Patriots do not?
The Red Sox is a clear difference as it is a non-cap league, so spending power makes a huge difference in terms of both usually being the clear most money, and the ability to stack the roster with other top money players.
As to the Patriots, they are the most successful franchise in their sport, and they still rarely sign the biggest free agents, now it could be that they simply prioritize value and that is why they rarely sign big FAs. The exception would be Revis, but that is a strange case, he was cut when most teams had already locked up most of their cap space, and he came here with the hope of getting a ring. Once he did, he left for a better offer in NY, whether it was all money (probably) or at least partially a preference for one of the big nightlife/media cities is unclear.
Edit- I don't agree with the idea that FAs will NEVER sign in Boston, but at the same time in the NBA, top stars are looking for particular cities since the money is equal, with other considerations being championship potential (we're not in that category) and other stars on the roster (nope). Few real stars want to go to a less attractive city, with unattractive teammates, no matter what the history or coaching situation. Add in that there are a number of teams where the tax situation makes the same contract more valuable and it makes it harder to compete.