Skinner, e. Kane, toffoli, hyman, huberdeau, forsberg, konecny, schwartz, kreider, eberle, drouin, marner, ehlers.. couple of player who played as a C in the other league outside of NHL and didn't play that position in NHL.
The fact he having skill and played at the position doesn't mean its the best fit for him in the NHL.
And yes he need time to ajust but all the scoring chance he create by beating d with his speed will not be possible anymore as a center. He will need to find an other way to produce and its where the challenge will be offensively if he still playing at C.