I THINK that our #3 TE is going to come to us via the waiver wire on final cut day. For example just look at what the Pack have a TE. They already have Graham, Sternberger, and MLewis. Frankly I can only guess that they picked Roberts up as insurance against injury. So if no one gets hurt, Roberts will be available OR someone else just as intriguing that didn't make another team who have a lot of TE depth.
I've already come to grips that the Pats TE is NOT going to replace Gronk, or even a Gronk-lite. It will be what it is and the offense will still thrive in another manner. No use worrying about it.