Complex sentence: In March 2008, Greg DiPasquale (guitar) left the band and was replaced by Karl Kirsch; in October 2008, Derrick Sadkowski (drums) left, and was replaced by Alex Chambers.
Split into simpler sentences: In March 2008, Greg DiPasquale (guitar) left the band and was replaced by Karl Kirsch. In October 2008, Derrick Sadkowski (drums) left and was replaced by Alex Chambers.