Guthrie, under team control through 2012, has a 4.30 ERA, 4.8 K/9, and 2.3 BB/9 in 102.6 innings this year. He's allowed 13 home runs. In the same year that his salary jumped to $3MM, Guthrie's strikeout rate is getting dangerously low. Still, the Rangers could use an innings eater with Rich Harden and Derek Holland on the disabled list.
Wigginton is a versatile rental, capable of playing second base, left field, and the infield corners. He's got a .266/.351/.472 line on the season, including a lackluster June. About $1.86MM remains on his contract.