Valbuena's MLB career started in 2008 for the Mariners. The Venezuelan was later traded to the Indians, then sent down to the minors in 2011 and eventually traded to the Blue Jays. The Cubs claimed him off waivers from the Jays in April 2012.
It's been a small sample size, but I like what I've seen from Valbuena. He looks solid in the field and he's got two homers and 7 RBIs in 6 games. He's also not Ian Stewart. His career stats don't really suggest that he'll continue on his current pace, although he hasn't played much the past few seasons.
Valbuena saw action in 17 games for Cleveland last year, following a 91 game campaign in 2010 and a 103 game run in 2009. He hit 10 home runs in 2009 with a .250 average, his best season. Homers dropped to 2 in 2010 and his average fell to .193. In the 17 MLB games he played in last year, he hit .209 with 1 home run.
So obviously Valbuena's probably not the long term answer at third base. Stranger things have happened though and the Cubs have a dearth of talent at third in the minors. He's only 27 and the job seems to be all his for the moment. Let's see what he does with it.
*Who The Fuck Are These Guys?