Complex sentence: He spent his first ten seasons with them, averaging 15 points and 6.1 assists, the entire time in a backcourt tandem with All-Star shooting guard Rolando Blackman.
Split into simpler sentences: He spent his first ten seasons with them, averaging 15 points and 6.1 assists. For almost the entire time in his first stint with the team, he was part of the starting backcourt tandem with All-Star shooting guard Rolando Blackman.