I thought there were talks when the 10th assistant was first announced that they might add a Special Teams guy like Joe Houston, which would shift Gasser's Special Teams stuff off to Houston. Since Gasser coached TEs before, I could see Gasser being WR/TE, RB/Recruiting for Golesch, and Houston for Special Teams
This was an easy option Matt noted when discussing the 10th assistant. If this happens, it will be because the TE position can fit into various existing rooms (OL, RB, WR). If there is a specific position add to the offensive side, it is because they have determined Joe's role works from a compensation, recruiting, and interaction standpoint. I would expect the latter to occur, especially without a pressing need to recruit a specialist player for a while.