Complex sentence: Langella quickly rose up the ranks of the family, and while Persico served prison time during the late 1970s and early 1980s, Langella doubled as an underboss and acting boss.
Split into simpler sentences: Langella quickly rose up the ranks of the family. While Persico served prison time during the late 1970s and early 1980s, Langella doubled as underboss and acting boss.