What should slot say? "Oh he'll play plenty don't worry?". Why? He should be using this time to motivate players publicly. I want a rocket fired behind Harvey, so when the opportunity presents itself he takes it with 2 hands. With klopp he'd praise the benchwarmers and then never use them, and that introduced complacency because everyone knew it. Here, I see it as slot saying "he needs to work hard and he'll be rewarded for it. Show me what you've got"
Then why didn't he just do that? Given his repeated references to competition, and those final words from "but" onwards, I stand by what I said. Time will tell.