Comangliaare these the logs of corsa "...not doing anything."?
http://logs.tf/1279741?highlight=76561197990876261
http://logs.tf/1279761?highlight=76561197990876261
obviously their's nothing specific here but the 1st half looks pretty damn good, and the 2nd half looked alright.
I'm not sure what reasoning the team had for getting rid of corsa, or what motivated the change but it isn't necessarily his ability to play scout.
(also scout stats in a 5-0 roll =/= scout performance in a close, back and forth, match.)