From 1990 to 1993, he served as the pitching coach for the Houston Astros, and helped develop Darryl Kile, Pete Harnisch, Mark Portugal, and Curt Schilling.
Portugal | Mark Twain | Mark | Mark Wahlberg | Portugal national football team | Mark Knopfler | Mark Zuckerberg | Mark Rothko | Sporting Clube de Portugal | Oeiras Municipality, Portugal | Mark Antony | Mark the Evangelist | Gospel of Mark | Mark Ronson | Mark Spitz | Mark Foley | John VI of Portugal | Mark Murphy (singer) | Mark Murphy | Mark McGwire | Mark Hamill | Deutsche Mark | Rádio e Televisão de Portugal | Mark Taper Forum | Mark Millar | Mark Lewisohn | Mark Kermode | Mark Lanegan | John I of Portugal | Santarém, Portugal |
On July 21, 1995, he was traded by the San Francisco Giants with Darren Lewis and Mark Portugal to the Cincinnati Reds for Ricky Pickett, John Roper, Deion Sanders, Scott Service, and David McCarty.