3) Failure in the Champions League
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The biggest criticism of Pep Guardiola's time at the record Bundesliga Champions was his failure to deliver a Champions League title in three years, having taken over the club when they were the Champions League holders.
It was expected that Carlo Ancelotti - a three-time winner of the biggest club competition in Europe, would bring a sixth European title to Bayern's trophy cabinet end the wait.
However, Bayern repeatedly faltered in the Champions League, especially against the better teams. Ancelotti as a coach only suffered nine defeats in his time at Bayern, but incredibly five of those nine came in European competition, which included both legs of the quarter-final tie against his former club Real Madrid. They also lost 1-0 away to Atletico Madrid in the group stages last season.
The 3-0 loss to PSG was the final nail in the coffin. The hopes of winning a European title takes a pummeling with such results and Bayern ultimately cut the rope.