"They are very, very experienced on defense," said Wells.
Referring to Aztec coach Rocky Long, he added, "That's a great quality in a defense because he can pull out a call they used four years ago and they all remember it. That allows coach Long to be a lot more multiple and a lot less predictable and that, in my opinion, makes them a lot more effective."
The Aggies have won three in a row, including last week's 52-26 demolition of Boise State. They lead the Mountain Division.
The Aztecs have also won three straight games, including last Saturday night's 30-7 victory over San Jose, which put them in the West Division driver's seat.