Chelsea without a manager.
AC Milan could lose Ancelotti so could be without a manager.
Real Madrid without a manager.
Arsene Wenger and Jose Mourinho touted with a move to Spain so Arsenal or Inter could be on the lookout for a new gaffer.
Portsmouth without a manager.
Sunderland without a manager.
Wigan set to lose Steve Bruce - so will be without a manager.
Gordon Strachan has just quit Celtic, Tony Mowbray, Owen Coyle and Mark McGhee are the three favourites who are all currently employed by clubs at this point. West Brom, Burnley and Motherwell respectively.
Newcastle are without a manager, although Alan Shearer looks set to land the job full time.
Reading without a manager. Brendan Rodgers' is odds-on favourite, so that would be Watford looking in a new direction. Alan Irvine has also been linked so that's a potential change at Preston.
Kevin Blackwell's considering his future at Sheffield United, so they could be without a manager.
Yes I think it's better that these managerial vacancies crop up in the summer, so that they don't affect a club's season but I do begin to worry about Sean O'Driscoll's future. He is touted as one of the best manager's outside the Premier League and I'm getting worried that one of these clubs will want to take him from us.