khedira once was a 9 goal player for us. pjanic scored 3 during the first couple of months this season. but yeah, prime vidal was obviously an other beast. most complete b2b i can remember.
bentancur's main strength is his calm on the ball, and his pass accuracy is great too, but when it comes to tackling, box presence, sheer power and long-term reliability, he's got a long way to go before nearing prime vidal. not taking away anything from him, current bentancur wouldn't start for our '15 team.