@mazhar13 how did Vieira get on at Sampdoria? Looked a great prospect at Leeds.
Disclaimer: I haven't watched many Sampdoria matches last season. I think I watched ~6-10 matches.
From what I've seen, he hasn't really started for Ranieri after the Serie A restart. He was left on the bench on several occasions, and he'd only come on as a sub to either see matches off or go for a winner. He'd typically play a box-to-box midfield role where he'd cover lots of ground and drive the team forward on the ball. However, he wasn't reliable enough on the ball and would misplace his passes on key moments. As a result, Ranieri would put him in a more attacking role where he wouldn't be as much of a liability for Sampdoria. They did miss his directness and energy, though.
Overall, he was average at best, but I'd say that it has more to do with Ranieri and his safe setups than with the player himself.