Target: Edwin Jackson, RHP
Type of move: Free agency
2012 stats: 10-11, 4.03 ERA, 168 Ks, 58 walks
In Washington, Jackson was a pretty average pitcher, as evidenced by his numbers. A 4.03 in the pitcher-friendly National League? Meh. He's had some better years, including the previous two seasons when he was sub-4.00 ERA with the White Sox and Cardinals. He also threw the most unimpressive no-hitter in baseball history in 2011 when he threw more than 150 pitches and walked eight batters en route to the no-no.
If you could get Jackson on a cheap 1- or 2-year deal, then that's fine. But with the way the pitching market has gone this offseason that's not very likely. You can find better options here, including in-house candidates, to fill out the rotation. And keep in mind, Colby Lewis should be back in June. Steer clear of this one.