Maybe he didn't want another PL club yet. The quality of football in SPL might be poor but the support and atmosphere at Celtic is incredible , better than most (all?) English clubs. Ambition does not necessarily mean looking for higher paid jobs. His ambition might simply be to see if he can...
if the first 3 pages of the Celtic forum are anything to go by this is nothing like the Potter situation. 60 posts and 55 very positive about his re-appointment, 4 sort of neutral 1 negative. As regards Rodgers, he has been at the top and now back with the club he supported in his boyhood...