First off, it's pretty premature to make any comparisons. Both Lucas French and Jarrod Washburn have thrown minimal innings (22.1 for French, 25.1 for Washburn) for their new clubs, but it's worth a look.
First, the traditional surface numbers:
Jarrod Washburn:
6.04 ERA, 25.1 IP, 13 K, 6 BB, 24 H, 8 HR allowed (though 4 came in one game).
Luke French:
4.43 ERA, 22.1 IP, 15 K, 13 BB, 27 H, 3 HR allowed.
Traditional numbers are a mix. French leads in ERA, but drags behind in the K:BB ratio.
Let's move onto Fielding Independent Pitching (FIP).
Washburn:
7.21 FIP.
French:
5.33 FIP.
FIP looks at just strikeouts, walks, home runs allowed. It divides it by innings pitch and adds around a 3.2 qualifier to put it on the ERA scale. French wins this as well, mainly because of the homer's allowed. Washburn hasn't been overly good, but his 8 homers kill his FIP and that's largely due to 25% of each fly ball he's given up going for a homer thus far. That's nearly double league average.
Let's look at xFIP (from the same source as above).
Washburn:
5.17
French:
5.86
Washburn wins this because xFIP regresses the home runs allowed by a pitcher back to the league average. Luke French gets hurt here because of the walks he's allowed while not striking out a substantial amount.
However, my favorite pitching metric is currently tRA. It is essentially a better FIP number that simulates defense-independent ERA simulators. It is based on each batted ball type a pitcher gives up. If he's getting hit hard with a ton of fly balls and line drives (the two more damaging of the FB/LD/Ground Ball batted ball types), his tRA will be higher. tRA* is the regressed version of tRA and would be what xFIP is to FIP. We'll look at tRA* since regressing is better than not regressing.
Washburn:
5.01
French:
5.08
Here, it's pretty much a dead heat. To get tERA,
Commenter Scott pointed out that you multiply by .92 -- I don't know what i was thinking when I wrote this. So, their tERA's are 4.61 for Washburn and 4.67 for French.
StatCorner also has Wins Above Replacements, as well. Since Washburn's come over, based on a WAR sample that uses tRA, he's provided -0.3 wins above what a replacement pitcher would bring to the Tigers in the same number of innings. French has given the Mariners -0.2 wins above what a replacement level pitcher would provide given the same number of innings.
Essentially, the two have been nearly identical once you account for Washburn's bad luck with the home run ball this year.
So, then, what is the difference between the two?
Around $3.3 million dollars in salary. I'm sure you know which one is getting paid more. My opinion on the deal hasn't changed, thus far. Here's to hoping I'm proven wrong, though.



