The show has had him doing nothing for the past season, having them show us the inner workings of the Citadel would be interesting, but I don't think he'll stay there.
And I never said that Randyll Tarly was an awesome sword fighter, I said that "he is a warrior, and one of the finest soldiers in Westeros", now thats a fact in that books, you can check it if you want, but its true. Your the one who got your knickers in a bunch and started saying that he wasn't great, and then when I say that he doesn't need to be great to beat Sam up, your agreeing with me?