Why is he supposed to "rip up trees" ? Hasn't even been here for 6 months yet ..You said disaster not me. I think he's been ok in some games, Burnley for one, but he hasn't exactly ripped up trees has he.
Sure he has time to improve and turn things around, playing him in the middle and dropping KDB would help for a start. But whether you like it or not, clubs don't spend £100m on average players, they buy and expect the best, and for many the jury is out on Jack and only a fool would think otherwise.