Everyone has their own strengths. Although Rodriguez wasn't the sharpest tool in the shed and his combat skills weren't particularly impressive, even after being trained by Aurora, his bluntness became an asset.
It was because of Rodriguez's blunt nature that Yang Yi felt safe using him.
If everyone in the Organization of Water were schemers like Chris or had the crafty minds of a sharp-witted Anton, capable of handling anything thrown at them, then how would Yang Yi ever lead as the boss.
It was precisely because of someone like Rodriguez that Yang Yi could feel the essence of being a boss. There was no helping it, since the Organization of Water was filled with talents, and someone with a simple mind like Rodriguez was a rarity. Besides, Rodriguez, not much different from when he was in prison, maintained extreme respect for Yang Yi.
One's own subordinate wanting to return home for a visit and enjoy a hero's welcome—how could Yang Yi possibly refuse.