Hmm maybe it was him. I thought read someone where that his training methods weren’t up to scratch and unless he already had s super star squad who knew what to practice he struggled.
These stories have been around for years: doesn't always show up for training; has an old-fashioned 5-a-side kickabout approach; short sessions; lack of innovation; players organising their own extra training sessions and complaining they don't feel fit enough or well drilled.