Based on his 1st team appearances, Carswell looks like one to break up the play and keep things simple. I'm not sure if that has been his natural role coming from the ranks but he certainly didn't look out of place in the 1st team.
Big season for Page, centre half by trade but I like the look of him in midfield. Given the relative depth in midfield and defence however, I can't see him being any more that a utility player.
As for Stephen Hughes, it was an honour to have a player of his ability at Fir Park and as mentioned previously, he was instrumental in the best play we have seen from Motherwell since the early 90s. While I'd be pleased to have Hughes park, I'd prefer to go down the route of bringing in a younger player from the lower leagues in England who is hungry to develop his game and ultimately use Motherwell as a stepping stone.