My thoughts are that Enzo knows how much is riding on these games and he doesn’t have full confidence in his bench at the moment. That’s the only thing I can think of. His subs the last few games haven’t been great, and at times we’ve conceded after making the changes. So that’s bound to have an impact on decision making.
I hear that Vardy was told to miss some training last week so his legs were fresh for Hull. Interesting concept that, and goes a way to showing that Enzo doesn’t have the squad he wants/needs to win the league comfortably.