Just in terms of his role within our club going forward, Toby and Dav are leagues above him for the foreseeable future. Obviously hard to say what Jan's status is.
Then you look at how good Japhet has looked since he broke into the squad and I think almost all of us if we had to pick one would pick him over Foyth. Hell, I'd probably pick Davies in a back 3 over Foyth just because of his reliability.
I know that doesn't speak directly to his ability, but it shows how far he has to go to establish a role for himself at Spurs outside of cup games - and probably indicates that his best chance of becoming a starter is in another league in Europe.