I'm with Milo on this. If Walker is going, I'd give the chance to KWP. He's supposedly highly rated, supposedly consistently too good for the youth games (like Onamah) and if we don't give him a chance to step up, we aren't doing what we claim we do if he's genuinely earnt it.
Our strategy as a club has to be based around the idea that hard work, focus and a belief in the team is what is required. Trippier getting these opportunities if Walker has lost focus sends the signal to every player that if you work hard, if you take your chances and you demonstrate continued improvement, it doesn't matter that the player in front of you is first choice for his country or even in the PFA team of the year. If he loses belief and focus in what we are doing, then he's gone.
Similarly, our strategy for youth also has to be about giving good youngsters the chance if a space opens up. We went into this season with Winks as first cover for Dembele and that hasn't turned out too badly. If we want to attract the best youngsters ahead of or rivals, which we need to do because we can't afford to compete with them financially, then we need to do this. It's the right strategic decision, if for example KWP has proven he is ready to Poch in training. If he's been playing in the systems in the youth teams anyway and been playing under Poch in training on a daily basis, he deserves the chance and he'll probably do well with it.
Overall, if all this Walker stuff is true, it sends a great signal that we trust Trippier because he has worked hard, stepped up and taken every opportunity he was given, and it sends a great signal to our academy. It may make people nervous, but it's the right strategic decision IMO and reinforces everything that got us to this point.