It would be a mistake to play a direct style, we don't have the players for it. Carroll has his strengths and weaknesses and bringing others into play most certainly isn't one of them, no matter what his fans would like to think. He's an effective player in the box because of his ability at getting above defenders and getting power onto his headers but he isn't a good target man, yet. To base our build-up play around him will end in tears.
Really, we just need to find a style and become very proficient with it to the point we can impose it on any team next season. Blackburn have taken points from all of the big 4 at home this season. Birmingham have done exactly the same and could have easily beaten Chelsea, Man City and Man U. With Blackburn it's all about balls into the box, their training sessions must be about as interesting as watching white paint dry. Birmingham have a lot of energetic steel in midfield, sit deep and break in numbers, they're a very difficult team to break down.
Either of the above styles won't sit at SJP, we all know a large contingent of fans just won't accept it, especially if it isn't achieving the results because of players being generally unsuited to it, we've all seen it before. Hughton has seen the damage we've done playing 2 wingers and getting as many balls into the box as possible. This needs to be the basis imo, but an effective poacher alongside Carroll is a must if this is to be continued in the big league.