The thing with Palmer is, when he doesn't have a good game he still way ahead of those such as Madueke when he doesn't have a good game. Palmer has little bits in games where he does something really influential, not special but something that will affect the game this maybe a pass, a cross, a run to take away a defender or just something crazy.
I'm more worried about the likes of Madueke, Gusto, Jackson, Sanchez and Nkunku