So what exactly are the Rangers getting in terms of production at first base offensively over what they've had this season? ESPN Stats & Information (Michael Lynch) has some insight to the possible answer. Here's what the Rangers have had at first base offensively and what Cantu has done:
Rangers: .197 batting average, .296 on-base percentage, .315 slugging percentage, 8 HRs, 37 RBIs
Cantu: .259 batting average (he's batting .227 in July), .308 on-base percentage, .408 slugging percentage, 10 HRs, 54 RBIs.