I can honestly say I havnt got a clue Kenny likes 442 mainly but has dabbled with 352 also. But with the abundance of CMs maybe 433 would be best, but I dont remember KK playin it I would say give 433 a go and see if it works What I would say is ,whatever formation we play must get the best out of Suarez, hes our most important player now, if we tried 433 and he wasnt involved I would say we had to change it,cos in the long run, havin Suarez involved in as much of the game as poss is our best chance of success.
