a) 3 of the 4 are free agents
b) 1 is reportedly available via trade
c) 1 is a Type A free agent and 1 is a Type B free agent
That's all the info I'll provide, so let's see how the 4 stacked up in 2008:
To summarize, these pitchers did not perform all that differently in 2008. Pitchers A and B tossed the most innings, Pitcher C gave up HR's at the lowest rate and Pitcher D gave up home runs at the highest rate. Now to reveal the mystery pitchers:
Pitcher A = Jon Garland, a 29 year-old Type B free agent I've covered here. He made $12 million in 2008 and will likely require a 2 year, $20-22 million commitment.
Pitcher B = Oliver Perez, a 27 year-old Type A lefty we're all familiar with. He made $6.5 million in 2008, is asking 5 years, $70 million (fat chance) and will likely require 4 years, $44-48 million.
Pitcher C = Jason Marquis, a 30 year-old available via trade who made $6.4 million in 2008 and is set to make $9.9 million in 2009.
Pitcher D = Tim Redding, a 31 year-old I've covered here. He made $1 million in 2008 and will probably require a 2 year, $7-8 million commitment.
There are other factors to consider here obviously (age of pitchers, career track record, lefty/righty, etc.), but the point is I think it would be a big mistake to sign Ollie or Garland when a guy like Redding is available. Redding is a step down from Ollie, but it is a small step. I wouldn't be opposed to trading for Marquis, provided the Cubs eat some salary. A Redding or Marquis acquisition should be coupled with a Derek Lowe or Ben Sheets signing. Ollie isn't worth more than $6 million a year.