I think everybody will be fully focussed the more I think about it. So many players have so much still to prove and I think at 10 points with 11 games to go, there is still interest if not a strong chance of clawing it back. If Arsenal were to win at Spurs and Chelsea were to slip to a draw with WBA, a win over Wigan going into our Spurs/Chelsea matches could be pivotal. Obviously, there is more chance of us not winning those 3 games then winning them but the carrot is definitely there. 10 points can turn to 3/4 very quickly as we well know!
I hope your right, and to be honest I keep catching myself looking at the table and thinking "if this result goes this way, and that result goes that way..". The fact we still have to play Spurs, Chelsea, and Everton as well as some of those above us still to play each other also adds to the "what if" factor.
However unless Spurs collapses, which I don't see happen (Bale's goal against WHU may have put that out of my mind) I think 4th is a bridge too far. However we have to go out and try to get maximum points from the matches left. We can't control what other clubs, and the table will be what it be at the end of the season.