Boston: I think you're really underselling a significant problem you have, and that's ball movement. You say Gasol alleviates that, and he does help, but Gasol is a good passer for a center, not a great passer in general.
Russell Westbrook and Kevin Durant (which we can all agree is a significant step up from Westbrook/Griffin) had a really hard time making the timeshare work, and it wasn't until James Harden came along that the ball movement issue seemed to get better, even then, only a little.
Durant's ability to create his own shot from isolation, as well as Westbrook's ability to do the same got them by more often than not, but now you've got a player in Griffin whose main gifts are much more pronounced when being fed by a gifted passer.
You're surrounding Westbrook with bench guys in DJ Augustine, S-Jax and Ron Artest who aren't really even good passers for their positions, let alone in general, and guys who are more known for taking a shot than passing up on it.
How are you going to stop your offense from stagnating?