not sure i'd really say this about A&M, especially in singles
their #7 that filled in against LSU is junior ore (trained w/ kudla, frank, and co. at college park) and his background is as impressive as any freshman in the country...top 20 junior in the world, with a win over top seed and defending champion daniel berta at roland garros juniors
if that's questionable depth then no team in the country has ever had depth at singles
edit: on second look perhaps you were just referring to the mystery of which player takes the court, in which case sure you're right, but i don't think there are major concerns ability-wise w/ A&M...much like Baylor where bley is a more-than-capable #7