Glad to see you posting - welcome aboard. I think it's a great question and one that others can probably answer better than I, but I do also think that the manager will rely on the catcher's opinion heavily. I'd think that out of everyone on the field, he's the one that would have the best first hand knowledge. Perhaps the middle infielders have a pretty good angle and perspective, but especially with runners on base, they're gonna be more distracted by playing the position lol.