I grew-up in Detroit as a Tiger fan (I gradually switched my allegiances to all the AZ sports teams), so I remember a lot about Tony Clark (who was their starting 1B from '96-'01 (became their starting 1B after the Tigers dealt Cecil Fielder to the Yankees).....
He was originally drafted (as a SS) as the 2nd over-all pick in the '90 draft (Chipper Jones was selected just ahead of him)... Although, he decided to play basketball for U of A for a couple years..which initially stalled his development.... What affected him at times was that he endured constant back problems, but has since "rebounded" from them, and would be ideal as a back-up and mentor for Tracy... People say that leadership is some times overrated, but Clark is briliant at studying the game (especially charting each of his ABs and watching game tapes of pitchers), which would definitely help serve the younger players.... Plus...the dimension of him being a switch-hitter really can be a boon for the Dbacks as well.... Would be a steal if they acquire him for a bargain minimum contract...