Probably, but one can find numerous examples from other games when our mids were tightly marked. I've questioned KdB's suitability as No8 at the start of the season, and his performances hasn't convinced me since then. I think if we'll eventually get high-level player of Silva's or Gundogan's type with enough press-resistance ability, KdB will be moved further upfield, probably as RM/RCM. Couple him with a marauding fullback like Walker, and it will hide Kev's lack of speed and technique. Kev's right-footed crosses are imperious, and when our team loses the ball he can move centrally to press and prepare for counters.
Pep is already trying such formation (Southampton and Arsenal before Silva's injury) at the expense of benching Sterling. The reason why he couldn't do it earlier is, IMO, the absence of suitable RB before Navas' convertion and shortage of creative CMs after Gundogan's injury.