Complex sentence: Although he tried to counter feedback on his poor sales by saying he had given out a positive attitude, Scott argued that he did not work well in a team, and then accused him of not being serious in his business ambitions, which outraged Sam.
Split into simpler sentences: Although he tried to counter feedback on his poor sales by saying he had given out a positive attitude, Scott argued that he did not work well in a team. He then accused Sam of not being serious in his business ambitions, a claim that outraged Sam.