Jays 4 A's 2-Experienced Catchers with young pitchers

Friday, July 08 2005 @ 09:48 AM EDT

Contributed by: Mike Green

After a tough loss on Tuesday night, the Jays came back for the series win. Swee-ee-t. Last night's game had the feel of a loss in the making early on. Falling behind 2-0 with Harden looking sharp on the mound is not a recipe for success, but the boys used patience and the big hit from Vernon along with fine bullpen work to head for Texas with a second straight W notched in their belts.

It was quite a series, as the Jays faced the three young pitching stars of the A's- Haren, Blanton and Harden. Jason Kendall was acquired this off-season; many, myself included, thought that part of the reason for the acquisition was to provide a steadying influence on the young pitchers. I reminded myself of the positive effect Pudge Rodriguez had on young pitching staffs in Florida and Detroit the past two seasons. I wondered if one could test whether this supposed steadying influence could be observed statistically.

So, I did a study. I looked at the effect of arrival since 1980 on veteran catchers on the young pitchers on their new teams. I used only teams which had at least 2 pitchers, who were either 25 or younger or had less than 30 prior starts as of the arrival of the veteran catcher. Each of the pitchers had to pitch in the previous season. It is for this reason that Javy Lopez was not included in this study, as Daniel Cabrera and Erik Bedard did not pitch in the major leagues prior to Lopez' arrival. The seasons included in the study were: Ivan Rodriguez, 2003 and 2004, Gary Carter 1985 and Carlton Fisk, 1981. It should be noted that 1981 was the strike season; that is the reason for the reduction in innings pitched for each of the White Sox starters that season.

Here are the results of the study:

	         IP	H	ER	W	K	HR	ERA	$W	$K	$HR	$H

Ivan Rodriguez- 2003

Penny-2002 129.33 148 67 50 93 18 4.66 0.387 0.719 0.139 1.144 Beckett-2002 107.66 93 49 44 113 13 4.1 0.409 1.05 0.121 0.864 Total-2002 237 241 116 94 206 31 4.41 0.397 0.869 0.131 1.017

Penny-2003	196.33	195	90	56	138	21	4.13	0.285	0.703	0.108	0.993
Beckett-2003	142	132	48	56	152	9	3.04	0.394	1.07	0.063	0.93
Total-2003	338.33	327	138	112	290	30	3.67	0.331	0.857	0.089	0.967

Ivan Rodriguez-2004

Bonderman-2003	162	193	100	58	108	23	5.56	0.358	0.666	0.142	1.191
Robertson-2003	44.66	55	27	23	33	6	5.44	0.515	0.739	0.135	1.232
Total-2003	206.66	248	127	81	141	29	5.53	0.392	0.682	0.14	1.2

Bonderman-2004	184	168	100	73	168	24	4.89	0.397	0.913	0.13	0.913
Robertson-2004	196.66	210	107	66	155	30	4.9	0.336	0.788	0.153	1.07
Totals-2004	380.66	378	207	139	321	54	4.89	0.365	0.843	0.142	0.993

Gary Carter-1985
Darling-1984	205.66	179	87	104	136	17	3.81	0.506	0.661	0.083	0.87
Gooden-1984	218	161	63	73	276	7	2.6	0.335	1.266	0.032	0.739
Fernandez-1984	90	74	35	34	62	8	3.5	0.378	0.689	0.089	0.822
Totals-1984	513.66	414	185	211	474	32	3.24	0.411	0.923	0.062	0.806

Darling-1985	248	214	80	114	167	21	2.9	0.46	0.673	0.085	0.863
Gooden-1985	276.66	198	47	69	268	13	1.53	0.249	0.969	0.047	0.716
Fernandez-1985	170.33	108	53	80	180	14	2.8	0.47	1.057	0.082	0.634
Totals-1985	695	520	180	263	615	48	2.33	0.378	0.885	0.069	0.748

Carlton Fisk-1981

Dotson-1980	198	185	94	87	109	20	4.27	0.439	0.551	0.101	0.934
Burns-1980	238	213	75	63	133	17	2.84	0.265	0.559	0.071	0.895
Trout-1980	199.66	229	82	49	89	14	3.7	0.245	0.446	0.07	1.147
Totals-1980	635.66	627	251	199	331	51	3.55	0.313	0.521	0.08	0.986

Dotson-1981	141	145	59	49	73	13	3.77	0.348	0.518	0.092	1.03
Burns-1981	156.66	139	46	49	108	14	2.64	0.313	0.689	0.089	0.887
Trout-1981	124.66	122	48	38	54	7	3.47	0.305	0.433	0.056	0.978
Totals-1981	422.33	406	153	136	235	34	3.26	0.322	0.556	0.081	0.961

Totals-year prior
1593 1530 679 577 1152 143 3.84 0.362 0.723 0.09 0.96
Totals-that year
1836.33 1631 678 650 1461 167 3.32 0.354 0.785 0.091 0.888

I had anticipated that there would be some improvement in the ERA, as all of these catchers were fine defensive players. I guessed that there would be small improvements in the walk and home run allowed rate. The results were not exactly what I expected- the ERA improvement of over half a run per game is larger than I would have guessed, and the improvements in strikeout and hit rate surprised me. I stress that the study is only a first look at this question. There are on average improvements for young pitchers, and those would need to be accounted for. If one wanted to, one could do a cohort study with young catchers.

Gregg Zaun will probably have a number of young pitchers on the staff in 2006. We'll see how well he does.

Links of the Day

John Brattain's Blue Jay report card in the Hardball Times

Dan Szymborski on Melky Cabrera

Value-Added Linear Weight research by Tom Ruane, published by retrosheet.org

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