I'm in the same situation.
My TE2 (Alderman) has regressed a lot, especially his speed, the past season, but the main thing I did was make sure the TE almost always had a route to run and didn't block on passing plays.
I work exclusively out of the 113, 122, 203 and 212 utilizing at least one of each type of play, so people can't just line up one kind of defense to stop my offense. It's worked well so far.
I don't know if there's anything else really.