| Saturday, July 22nd, 1978 | Activated 1B Jason Cole from the disabled list. | Sunday, July 16th, 1978 | Placed SS Billy Lambright on the 15-day disabled list. | Friday, July 7th, 1978 | Placed 1B Jason Cole on the 15-day disabled list. | Thursday, June 15th, 1978 | Drafted 2B José Gonzáles in the 1978 first-year player draft (Round 7, Pick 10, 135th overall pick). | Drafted MR Alan Blanton in the 1978 first-year player draft (Round 8, Pick 10, 155th overall pick). | Drafted MR Dave Palmer in the 1978 first-year player draft (Round 9, Pick 10, 175th overall pick). | Drafted MR Alfredo Flores in the 1978 first-year player draft (Round 10, Pick 10, 195th overall pick). | Promoted 1B Domingo Marín to Double A Alice. | Received RF Manny Morales from Double A Alice. | Friday, June 2nd, 1978 | Activated 3B Carlos Márquez from the disabled list. | Sunday, May 21st, 1978 | Activated MR Rafael Pérez from the disabled list. | Saturday, May 6th, 1978 | Placed MR Rafael Pérez on the 15-day disabled list. | Thursday, April 27th, 1978 | Placed 3B Carlos Márquez on the 15-day disabled list. | Friday, November 11th, 1977 | Activated SP Mark Burton from the disabled list. | Friday, September 16th, 1977 | Activated 3B Carlos Márquez from the disabled list. | |
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