With the New option of taking over a team, he can be level 27 manager and have a level 24 team.
I have a in game friend that is level 7 manager, but have a team level 5, because he took over another team.
In any case you are probably very near the top of the server, so more likely to meet managers from higher level.
For exemple JF is on top of server being a level 26 manager, but His team His level 24, because the system had made a hold on, 2 times, where on those seasons the team didnt lost stars, even being promoted.
I hope i had help in some way.