Oh, without any question. As I was banging on and on about before we signed Sharp, the guy knows how to get on the scoresheet. Rarely are his goals spectatular, but he gets in the right positions time and time again.
But against PL defenders, I do wonder how many opportunities Sharp would get to poach goals. And if he's not getting service (either because of lack of quality on our part, and good defending on the opposition's part), then he doesn't add a whole lot to the team. Certainly nowhere near what Rickie adds.
Yes sticking with 4-4-2 (either flat or diamond) will be fine against some teams, but I do fear playing Lallana out wide against quite a few PL teams. I can see teams really exploiting our left flank if he's still playing LM. Thus play him in a free role, off of the one main striker.
Sharp will bang them in if we give him the service. Getting that service will be the hard bit.
As for 4231/433 suggestions, I've got:
.....................Davis.................,...
Richardson...Fonte...Hooiveld...Fox
..........Schneiderlin...Cork.............
New RM........Lambert........Lallana
.....................Sharp....................
It's not far off what we do at the moment with Sharp sniffing for goals and Lambert a bit deeper. I think in the PL, we'd need to reign him in a little to make up the nubers in the middle. We won't see the best of him with some meathead centre half stuck to him, but in the hole he'll be more free to pull the strings.
.....................Davis.................,...
Richardson...Fonte...Hooiveld...Fox
..........Schneiderlin...Cork.............
....................Lallana....................
Lee..............Lambert...........Sharp
A truly mental 433. Could be worth a shot if we're chasing a game.