The inventors of the metric explains why the Diamondbacks' SIERA does not jibe with their ERA through the first third of the season.
Earlier in the year we introduced SIERA, an ERA-based estimator designed to more accurately predict pitcher ERA given more stable and significant—both clinical and statistical—inputs. With the season two months in, we are more closely monitoring the returns, and in doing so observed that the Arizona Diamondbacks have a vast disconnect between their ERA as it actually stands and what it should be given what are referred to as controllable and stable skills. Interestingly enough, this was a bugaboo for the desert dwellers last season, as several pitchers finished the year with a similar statistical archetype: very solid K/BB ratios, more grounders than flyballs, poor ERA.
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Pegging BP's favorites in both leagues, in the standings and for the major awards.
Today we reveal the Baseball Prospectus staff predictions for the division standings and the major player awards (MVP, Cy Young, and Rookie of the Year) in the American and National Leagues. Each staff member's division standings predictions may be found later in the article. Here, we present a wisdom-of-the-crowds summary of the results. In each table you'll find the average rank of each team in their division with first-place votes in parentheses, plus the results of our pre-season MVP, Cy Young, and Rookie of the Year voting. Picking favorites for the Wild Card for the respective leagues initially might have seemed easy, since the selections universally favored the second-place team in the AL East, while all but two voters picked their second-place teams in the NL East to earn the non-division champ playoff team, but a tie in the rankings had to be broken in favor of the team named the Wild Card winner on the most individual ballots, which is sure to upset some people.
For the MVP voting, we've slightly amended the traditional points system in place that's been used elsewhere, dropping fourth- and fifth-place votes to make it 10-7-5 for the MVP Award, and the regular 5-3-1 for the Cy Young and Rookie of the Year Awards (that's 5 points for a first-place vote, 3 points for a second-place vote, etc.). Next to each of these selections we've listed the total number of ballots, followed by the total number of points, and then the number of first-place votes in parentheses, if any were received.
Jeremy Reed had the best year of any player in the minors last year and has a very high probability of being an excellent player. I think a top-five ranking would be a just reward, and consistent with our emphasis on performance rather than tools. I absolutely do not understand why Reed would rank below Alexis Rios. He is Rios' equal in every attribute except for plate discipline, where he has a substantial advantage, and his PECOTA profile is considerably better. I don't think a couple of good weeks in Puerto Rico are enough to overcome that. Weeks is a stud and I think the objections to him are a bit overstated. I would like to get a scouting report or two on his defense, since his numbers were quite bad. I'm also not on board with the fear of ranking pitching prospects highly, though I'm sure there will be advocates for the opposite point of view. I think the *top* tier of pitching prospects is unusually good this year as compared with the top tier of hitting prospects, and I think we should make adjustments accordingly. If you want to get a bit more analytical about it, I don't think it's a matter of our overrating the risk associated with pitching prospects so much as it is our *underrating* the risk associated with offensive prospects, especially offensive prospects who have yet to reach Double-A. I like Marte a lot, and he has no real negatives, but placing him as high as #2 implies a scouting judgment of sorts; his numbers were good, but not overwhelming.
In preparing the annual top prospect list for Baseball Prospectus 2004, BP authors participated in the annual extended roundtable discussion of baseball's top prospects. The ranking and review process balanced translated statistics, scouting reports, and injury reports with the strong personal opinions of BP's finest…all with the goal of putting together the "best damn prospect list the world has ever seen." In Part I today we'll listen in on the discussion of the top prospects among pitchers, catchers, first basemen and second basemen. Parts II through IV will run Sunday, Monday, and Tuesday. We'll also unveil the final list Tuesday, with the Top 50 prospects (we've expanded from prior years' Top 40) revealed. Rany Jazayerli will be along to discuss the Top 50 list and the process that went into compiling it in Tuesday night's Chat.
Following up on yesterday's article, here is the definitive list of every transaction made at last weekend's Mock Winter Meetings in Chicago. The list of moves includes a blockbuster trade for Mark Teixeira, cheap contracts for Trot Nixon and Juan Gonzalez, and a surprise new home for Vladimir Guerrero.