I agree with everything beside WR/TE.
Colts should be glad that Pittman looks like a solid NFL receiver, because he's really the only one they have on the roster. TY was awful until late in the season, and he may be gone. Zach Pascal and others are barely roster worthy.
Jack Doyle is Jack Doyle. Mo Alie Cox is a basketball project that really hasn't amounted to much.
To me, AJ Brown is better than all of their weapons combined. And Firkser is similar to Doyle. Both receiving corps need work, for sure. Colts don't have that one stellar receiver, at this point.
But every other position that you listed, you're right, without question. And as far as receiving threats from the RB position, every team beats the Titans in that regard. Especially Hines on the Colts.