It's like watching Chelsea from a bit of time ago, eerily similar unimaginative U-style football. How many times have been successful playing this type of static possession snoozefest? Zero... Sure you score once in a while like in that video, but more often than not it's just a waste of time, we have seen that time and time again. Our successes have come from when we start attacking the box vertically, quickly and with intent.
I know nothing about Maresca, but I hope he's at least flexible enough that he can play counter-attacks too when that's appropriate. If he's a one trick pony that tells the players to only play out from the back and retain possession at all costs, then he's gonna fail quickly.