Complex sentence: He was extremely patient with one of his team members who couldn't keep up with the choreography and took the blame upon himself for the lack of preparation on other's behalf when their dance instructor reprimanded the team.
Split into simpler sentences: He was extremely patient with once of his team members who couldn't keep up with the choreography. He even took the blame upon himself for the lack of preparation on other's behalf when their dance instructor reprimanded the team.