Do we not think them standing in a low block and them standing on the half way line could make a difference? Mourinho and Conte have both proved they can't sit deep so far in my opinion.
Again; last season would argue otherwise in Conte's case.
.......Conversely, do any of them have enough pace to play a higher line? ...And in Lenglet's case; what he may not lack in pace he severely lacks in defensive awareness/ability.