Colorado ranked 96th nationally in scoring defense in 2019; 104th in total defense. The Buffs have seven returning starters ... will the Buffs make substantial strides in Year Two under Tyson Summers? The Buffs return all three starters along the defensive line - will Mustafa Johnson make a name for himself? All-Pac-12 linebacker Nate Landman had double the number of tackles of any other Buff in 2019 - will he get more support this fall? The Buffs are very young (but talented) in the defensive backfield - who will emerge as this year's star?