That, and a third-stringer could end up playing with a game on the line. That hasn't happened often at quarterback recently at MU, unless you count the crazy 2011 situation in which Cato was backed up by an emergency option for the bowl game.
And Legg has seen depth charts empty out elsewhere in his current Marshall tenure.
"It happened year one here ," Legg said. "Now, it didn't happen at quarterback, it happened at a number of other positions. It happened last year on defense, where they had a mass of injuries. Shoot, we were taking offensive guys and trying to put them over there and then they got hurt.
"Garrett Scott, I wish we never would have had to play him, but he ended up playing about 100 snaps because we had a bunch of injuries. He was a guy we had every intention of redshirting."
Holcombe and Anderson aren't coming in cold. Holcombe has that redshirt season under his belt, while Anderson graduated from high school early and went through MU's spring season.
"Last camp, fall, I was all over the place," Holcombe said. "I knew the basics [he ran a similar system in high school], but you know it in the room and come out here and it's so much faster. I've got more understanding of the plays; just try to get better every day and I've got a long way to go."
Anderson may be ahead of where the other three quarterbacks were in their first fall camps, but he is still having his freshman culture shock, it seems.
"This is Kevin's first camp and he was like, 'Man, I didn't know it was like this,' " Frohnapfel said. "I said, 'We were telling you it's hard.' I know I was [intimidated] then. It's good not to deal with the growing pains anymore."
Reach Doug Smock at 304-348-5140, dougsm...@wvgazette.com or follow him at twitter.com/dougsmock.