After what one source describes as “several years of frustration,” Marvel Studios president Kevin Feige has pulled off a reorganization of the vaunted film company that has him reporting to Disney studio chief Alan Horn as opposed to the infamously micromanaging Marvel Entertainment CEO Isaac “Ike” Perlmutter.

Feige, the architect of Marvel’s transition from a flailing comic book company into a film powerhouse that was sold to Disney for $4 billion in 2009, is said to have vented his unhappiness to Horn and Disney CEO Bob Iger earlier this summer. The reorganization was put into effect last week, according to sources.