While I agree with the principle, I don't think any of them will be sold in the coming windows.
Walcott will always be a player who has his use. He has shown no signs of losing his pace because (touch wood) he's not had any injury trouble recently in terms of his hamstrings. And if those hamstrings stay in-tact, then it doesn't matter how old you are (to an extent, obviously) you can keep your pace.
His knack for getting into the area and making good runs is always going to be there as well, so it's not an area that needs desperately addressing. In terms of other options for that position, I think a lot depends on how Lookman gets on. So I'd say Walcott is there until at least summer 2020 (whether that's first choice or not), and I have no issues with that. He's 29 and we knew when we invested it wasn't about getting the money back, it was about him delivering goals and assists which is what he does.
Gyfli, again, only just 29. Doesn't rely on pace and doesn't have a bad injury history. Whether he'll be a guaranteed starter in a year or so remains to be seen, but definitely a good player to have in the squad. Like it or not (and I know you don't not rate Gylfi btw, mate) he's probably our best outfield player.
Coleman, as you said we've been over.
I just don't see Brands/Silva looking to shift them all on. Maybe gradually, eventually, but those three are model pros that should be in the squad to complement the younger players we have.
