I too was very impressed with Theo.
I expected him to be too lightweight, but we never seemed to lack power with him in the scrum and he seemed to add to our mauls - he must obviously use his weight well.
However, the club need to be sure if he'll be that same player before making too many decisions.
If TV3 and launchbury struggle to fully overcome their injuries, then we'll be struggling if we were to lose Gaskell.
Launchbury
Stooke
Gaskell
TV3
Cardall
De Chavez
Fifita
Shields
I don't know if Fifita is a lock who can cover back row, or a flanker that covers 2nd row. But that's 6+2, and in general we'd be pretty happy with virtually any combination starting a game, with question marks only around De Chavez, and accepting that Shields would only start in the case of an extreme injury crisis