Guardiola is a blockbuster acquisition for the club known as FC Hollywood. Bayern are already one of the world's greatest clubs, but Guardiola's arrival will raise their profile even further.
Mourinho is now the outstanding candidate for any major jobs that become available, whether in Manchester, London or Paris.
If Mourinho also goes elsewhere, Mancini may keep his job by a process of elimination.
With Guardiola taken, Benítez's chances of losing "interim" from his job description have increased.
Moyes is perceived by many as one of only three serious candidates for the Manchester United job along with Mourinho and Guardiola.
His chosen one has chosen another, which means the Russian will have to draw up yet another plan if he decides to get rid of Benítez.
If Mourinho also goes elsewhere, they will have to look to the B-list should they want a new manager.
The current Bayern coach was expected to retire at the end of the season anyway, but his final months – which should include a Bundesliga title – will now be overshadowed.
The Premier League
The prospect of Guardiola and Mourinho resuming their rivalry in England has gone for now. The Premier League had no players in Fifa's World XI; now it has failed to attract one of the world's best managers.