No, but managers moving between clubs is a different proposition to players, IMO. I totally agree most Celtic players would give their right arm, even if they were die hard fans of the club, to play for Saints in the Premier League.
I think it's different with managers. Again, just my opinion, managers like Rodgers view clubs like Celtic as a career goal rather than a stepping stone. There is prestige to these clubs which teams like Southampton don't have, regardless of league quality.