The addition of Zack Greinke certainly puts the Los Angeles Dodgers in play for the 2013 season in terms of a postseason berth.
But it doesn't guarantee anything.
The Dodgers will now have a rotation that features Clayton Kershaw, Greinke, Josh Beckett, Chad Billingsley, Ted Lilly, Aaron Harang and Chris Capuano.
However, Billingsley and Lilly are both coming back from significant injuries. Harang and Capuano are likely now trade bait as well.
As of right now, the only locks for Opening Day are Kershaw, Greinke and Beckett. Beckett has had shoulder concerns in recent years as well.
The Dodgers are hoping that Billingsely can avoid Tommy John surgery, and recent reports about his progress in rehab have been promising.
Lilly had arthroscopic surgery on his left shoulder in September and has already begun a throwing program.
Greinke's signing certainly gives the Dodgers a huge lift, but the other moving parts are still in question. Once the parts settle into place, then we can see whether or not the Dodgers have a rotation worthy of mention.
Kershaw and Greinke is absolutely a great 1-2 punch. Anytime you put two Cy Young Award winners at the top of the rotation, there is reason for optimism.
But baseball is still a game in which 25 players all play a role and a game in which 11-12 pitchers all need to contribute. It's those other nine pitchers the Dodgers need to worry about.
Doug Mead is a featured columnist with Bleacher Report. His work has been featured on the Seattle Post-Intelligencer, SF Gate, CBS Sports, the Los Angeles Times and the Houston Chronicle.