I'll throw out another example in the theoretical numbers side of the house.
Which is more important for a reliever (or any pitcher for thar matter), the stats or winning?
PLAYER A had a 2.00 ERA, a 1.00 WHIP, and averages a K per IP but ends the year 0-6, 32 saves, and had 8 blown saves. Basically in games with decisions or save situations his team went 32-14. Maybe his ERA was low because he let a lot of inherited runners to score (earned or unearned).
PLAYER B who had a 4.00 ERA, a 1.40 WHIP, unimpressive K/IP but went 5-1 with 40 saves and only 2 blown saves. Maybe his ERA was high becuase in his 2 blown saves he got shelled and they left him in to rest the rest of the bullpen. His record in games with decisions or save situations was 45-3.
The bottom line in these examples is that PLAYER B'S team won more than PLAYER A'S team did in situations relying on the closer. PLAYER B gave up a few more runs and baserunners over the span of the season. So what? (I know, people will say that over the long haul PLAYER A will do better and PLAYER B will not do as well as things will even out.)
David, I agree with the majority of your post....however....WHIP and K/IP are a strong indicator of a pitchers actual performance, but past and expected future performance, and as had been argued at length, ERA is a measure that has many other variables outside of the pitchers control. It's still a yardstick and should be used as such, but there are better numbers to look at when comparing actual apples to apples.As per your examples up top, again on a ONE season basis, obviously Player B was more important to his team than Player A. However, when evaluating a player over his entire career, there is just no way that these numbers will hold true. In your example above, I would use the following real life players as examples:
Player A - Billy Wagner, circa 1997. A young promising reliever who hasn't quite gotten down the art of nailing down the save. He can dominate 80% of the time (32/40), however, the other times he isn't quite as dominant. However, as per his other periphery numbers, it can be argued that this guy has the makings of a stud reliever. He is allowing 1 base running per inning to reach base and striking out 1 per inning. Obviously he is for the most part over powering hitters, except in some cases when he is hittable, teams have taken advantage.
Player B - Danny Graves, circa 2002. While I think 40 saves (with just two blown saves) is a bit optimistic for a guy that is letting nearly a runner and a half on per 9 innings, and not able to strike out anyone on the other teams, he has been a very effective pitcher for one year. But, again, this is a one year basis. If I am a general manager, and all you have given me are the stats listed above, and you want me to sign one pitcher for the upcoming season, I am going to take Pitcher A. Results are one thing, but in an unknown season, expected results are what I have to go on.
Again, a guy like Trevor Hoffman has been as reliable a reliever there has been for going on a dozen seasons now. And while I would agree that Rivera is a more dominant reliever, and more HOF worthy, does none of that have to do with the teams they have pitched for? How many times has SD reached the playoffs or WS the past 12 years? If Hoffman had the national spotlight that the Yankees have had, putting up identical numbers, do you not think he would received more recognition?
Does it surprise anyone that Hoffman has a significantly better K/IP ration than Mariano Rivera? Their WHIP's are near identical over their respective careers, while Rivera's ERA is quite a bit better. Everyone always equates a dominant closer with one who is overpowering and able to strike everyone out.