He is very good at watching someone else and gaining insight but during a fight it's like you said - it seems like he goes red and just loses it.
Download [Dragonball] Dirty Fighting [French]
Tbf, the only time in the whole series Vegeta is paralyzed by fear is against Frieza, and even then he made attempts to attack him.
Dragon Ball Z Dj - Dirty Fighting 2
Once when he flies out of the water and slams into his gut and the second time when he plays dead and blasts Recoome in the face.
It's easily Vegeta, he is. But plan wise, he's head. Lets all remember how well.