Can't say I've watched most of their games but at least 4 full matches and he has these recurring lapses when he gets caught off guard. Leading to a substantial amount off high quality chances.I have seen all but one of SH games this year and I don't see the turnovers you speak about, but yeah, he is not the RB that Mou wants.
If he can sort those out he would be pretty good, but I've said that about so many players now... Difficult to coach out, hopefully maturity does it.