I dunno ... Kevin Stallings is currently earning more than Bruce. If you compare Stallings' first two seasons with Bruce's first two seasons, there is no comparison. Stallings led the Commodores to a 19-11 record and an NIT berth in his first season, and then missed the postseason entirely in his second season, when they went 15-15.
By contrast, Bruce got us into the Dance in his first year, losing in the second round, and has improved upon that feat in his second year, with the Vols now in the Sweet Sixteen. Stallings has only gotten Vandy into the Sweet Sixteen twice (if you include this season) in his 8th year at Vandy. And they've only been to the Dance twice in that time.