It has been said that great expectations often lead to greater disappointments. Through his first five starts of the season, Francisco Liriano could not be doing a better job epitomizing that sentiment if he tried. Blessed with tremendous raw stuff, enough so that many wonks figured he could easily compete for a Cy Young award this season, Liriano has struggled mightily once again with his command, making his outings as enjoyable to watch as some useless British wedding. In 23.2 innings of abuse, Liriano has posted a disappointing equilibrium of 18 walks and 18 strike outs. In his first five starts last year, Liriano had tossed 36 innings with a solid 36-to-13 strikeouts-to-walk ratio and a miniscule 1.50 ERA. What's more is that he has already been touched for four home runs, a total that wasn't reached until September 7 and required 27 starts to get there. This year? His peripherals are bad, there's no solace in his fielding independent numbers, and he can't find the strike zone. Naturally, Mother Nature was a miserable wench during his most recent start, sharting snow pellets at the field and making conditions wretched for pitchers nevertheless, Liriano abided and was cuffed around by the hot-hitting Rays lineup and was excused from the bitter cold have three innings and 83 pitches. After the start, the now 1-4 Liriano tethered to a 9.13 ERA gave reporters a self-diagnosis for his woefully start to the season:

Unequivocally, Liriano's success starts with his fastball. When he is able to throw it over for a strike on a regular basis, it sets up his slider and change-up. So far this year, Liriano has struggled mightily to throw his fastball over the plate but moreover, when he does, it typically is his fastball that is hanging out there for opponents to slap around. While Liriano was never a zen-master of control over his heater last year, he still maintained a respectable ability to get it over for a strike. That likelihood has plummeted hard: Liriano's fastball command Strike% 2010 63% 2011 54% In addition to owning the league's lowest strike rate with his fastball, he also has the second-highest well-hit average (.385) on the pitch as well. Scouring the video archives, there seems to be a small yet critical difference in his delivery that could possibly be the source of his inability to get the ball down. In the first video from 2010, Liriano dials up a fastball to this particular right-handed hitting Ryan Spilborghs:

Focus on Liriano in the clip after the release. During his follow through, he has a significant amount of bend in his back when finishing, helping keep his offering low in the zone. Compare that to Wednesday's delivery:

In this fastball to Tampa's Sam Fuld, Liriano remains more upright after his release, not finishing with the same downward action. The result was a pitch that wound up belt-high instead of knee-high and crushed to the furthest depths of Target Field. This is a trait that was shared among several of the other clips from his previous starts this year. Here is a still-frame:

As you can see, the 2010 version has slightly more bend helping drive the ball down. Again, it is a seemingly tiny difference however it could be the distinction between a knee-high fastball and a belt-high one. How influential can that minute factor be? Take a look at the locations of Liriano's fastballs from those two outings:

Here we can say that the bulk of his fastballs feel into the knee-high category. Once again, there are plenty of stray bullets around the strike zone but a vast majority finished low.

Liriano's fastball placement on Wednesday was haphazard at best with a sizeable amount finished up in the zone and over the middle of the plate. Why is the difference in Liriano's delivery? I don't know. Certainly there could be a nagging back injury influencing it but the more likely scenario is that Liriano is still attempting to re-establish the feel for his mechanics after a long winter away from baseball. When the Twins refer to his "inconsistent mechanics" this is probably just one of several glitches they would like to smooth out. It goes without saying but if Liriano wants to return to his 2011 form, he's going to need to locate his fastball in the lower half of the strike zone on a more consistent basis. My guess? Straight out this hiccup and we will start seeing him throwing hard at the knees once again.