I mentioned Pogba because you said he is a top player, like De Bruyne is his position, but not used properly. That sounds like the Pogba excuses to me.
Truth is he hasn't lived up to the expectation, wether it's because he hasn't been used properly or not is another issue, my point is his wages are a big concern and we shouldn't be signing him on our current state.
I get Ten Hag's connection but it would be the same if we were talking about De Ligt, another player who was great with Ajax, would cost a huge fee, under big wages and hasn't lived up to the expectation.