When Coach Sitake is fired up and animated, the players generally play loose and more competitively (see USC/BSU/last year Wisconsin).
When he's stoic on the sidelines, blinking at a higher-than-average rate, and not speaking with players, that's when the team plays tighter, makes more mistakes and things fall apart, particularly in the second half
I believe is Kalani can create more of an emotionally consistent approach on the day of games, we'll see a more consistent game result.