Sir Alex Fergusonfeels vindicated in his decision to promoteMikePhelan to assistantmanagerand Rene Meulensteen to first-teamcoach in the wake of Carlos Queiroz'sdeparture last summer.
Butterworth captained Norwich in the early 1990s, and returned to the club to team up with his former team-mates, manager Bryan Gunn and first-team coach Ian Crook, in February.
Johnston also told fans at the city's Flamingo Hotel that securing manager Walter Smith's future, along with assistant Ally McCoist and first-team coach Kenny McDowall, for another year offered the club continuity.