If I'm picking between those two from last Saturday, I'm probably going with 'failing to make adjustments.'
Losing Ozigbo and Morgan is a much, much bigger factor than any psychological factor in my opinion. Last year we had four good non-Martinez play makers on offense:
-Morgan
-Ozigbo
-Spielman
-washington
Two of those guys graduate. A true freshman phenom comes in (Wan'Dale) and is kind of expected to...what? To fill in for both Ozigbo (with carries) and Morgan (with receptions)? Pretty unrealistic.