Clemmer on a 2way makes him the definition of "whatever". Gomez on a PTO is also fairly innocuous because lots will have to go wrong for him to make the team even if he has a decent camp.
We'll disagree on your second point. If Gomez has a somewhat decent camp, I can see him making the team. Maybe it does work out, but there were a lot better options to improve the center position than bringing in Gomez. He's fairly limited in what he can do.