The first part of your post is extremely disingenuous.
Yes, we finished 6th last year, but Jose took us from 14th to 6th, which is a pretty impressive improvement. The points total he achieved when he was here I think was 3rd or 4th, which would have made for a good season.
We were knocked out of the EFL Cup before he took over and while we did lose out in the FA Cup, he didn't have Harry or Sonny then.
The reality is Poch's performance over the last 18 months barring the CL final run was quite poor and Jose has improved us from that level. It remains to be seen if he will take us where he wants to go, but let's not be disingenuous about where we were last year.