NE has had 2 great TEs for 2 seasons, and yet BB still drafted Lee Smith, brought in Dan Gronkowski, and a few other TEs who didn't pan out for one reason or another.
These other TEs weren't brought to NE to add depth behind Rob and Aaron, they were brought in to block. None of them are on the team, because BB settled with Nate Solder as his 3rd TE.
BB wants to bring together 3 TEs, Nate had some action this year as a TE, but injury to the o-line forced BB to play Nate at tackle.
It is my gut feeling that BB likes what Nate was able to accomplish this year as a TE, and if BB is able, he will bring in another tackle so Nate can play TE, and add depth to the 0-line. OR, BB will try to find that 3rd TE some other way, and the guy won't play back up to add depth, he will start in a 3 TE formation.
NE ran enough 3 TE package this year to warrant this theory.
BB accepted a 2 TE system, only because injury forced his hand to free up roster space for other positions. His ideal system for the Brady bunch was a 3 TE set, and in this offseason we will see BB go after it.