That would be Richard Williams – he is an original member of Kansas – he has always been the main lead guitarist and he is the one that did most of the famous licks. Kerry Livgren was the second guitarist and second keyboard player in the band. Livgren was the main songwriter but Williams has always been the main lead guitarist.
Ummmmmmmmmmmmmmmmmmmm no. Far from it. Livgren was the lead guitarist, second keyboardist, and primary songwriter from the beginning of the band. He left in '84 to pursue a career as a Christian recording artist. Williams didn't even join the band until the late '90's.