Maybe he should have stronger opinions, then.
If Whaley was adamantly against hiring Rex, Rex wouldn't have been hired.
It's pretty well-documented that Whaley wanted Tyrod gone. Which means It makes no sense that Lynn was Whaley's first choice for HC. Those are massive contradictions and I don't believe it.
The more Whaley proved his incompetence, he more his role was minimized.