Regarding creativity, I think we'll be taking more of a "sum of their parts" approach. Paulinho, Capoue, Chadli, Holtby and Dembele can all pass the ball well and work well in the final third. If we go 433, which is starting to look essential with our squad, then 2 of the 3 midfielders should have more license going forward and with Chadli coming off from the left flank(not too dissimilar to Modric a few years back) and a fullback overlapping I think we'll soon see players getting more times and space in attack.
As for Chadli against Espanyol, he was good and I liked the way he was bringing Rose into the game, we just need an attacking left back that can read his game well.
Maybe AVB/Levy/Baldy have seen a trend over the last few years where we tend to rely heavily on a small number of players (or just 1) for our creativity and the end result is them leaving and screwing us:
Berba, Modric, VdV, Bale(???)
So now we're going for a total-football approach to creativity.
If we bought in a player like Eriksen to play that role then I would hardly complain of course! But unless we sell Holtby or Sig I don't think its going to happen, and IMO those two players are here to stay this year. Unless AVB is considering Holtby to play a lot deeper and replace Hudd if/when he is sold in which case we may need that extra player. But again how do we keep all these midfielders happy?