There's nothing wrong with Kane, it's the crap he's surrounded by.
The summer non-transfer saga took it's toll on him, the fans and the team but he's been putting a shift in now it's all settled down and Conte has come in. He'll still be a top striker/10 for 4 years at least and will guarantee us a minimum of 20 goals a season in that time. We could cash in on him, get say £70m but what will that get us particularly if we're not in the CL which now looks possible after the past 2 pathetic performances by the team?
As has been said the Summer window really is critical if we're finally going to challenge at the top end, minimum of 3 or 4 first teamers in the positions we all know. Hopefully all Conte's first choices.
Edit. If we had better players in those positions Kane wouldn't feel the need to drop deep or out wide to compensate.