Keep him humble I think
Hes 23 and he's among the best in the world, very easy for him to get complacent and fall off a bit
Think Mbappe has shown this, the guy is a phenom and is the most naturally talented footballer in the world, but he thinks he's bigger than his club and lazy, at 30 that's om but not in your early 20's
Phil is so talented that he could easily start thinking that he's too good to do the pressing/dirty work as he's done it all, but keeping him challenged hopefully means his levels don't drop
Don't think its to "elevate" his performances, more to maintain