The “Stay Closed” Cue Could Be Wrecking Your Delivery
Randy Sullivan2026-06-07T22:23:49-04:00The “Stay Closed” Cue Could Be Wrecking Your Delivery I [...]
Lance Was My Last Pick — The Night a Broken 12-Year-Old Boy Rebuilt My Coaching Soul and Transformed The ARMory Forever
Randy Sullivan2026-04-24T09:10:43-04:00Early in my coaching career, I thought I was building [...]
All Effort, No Efficiency: Why Your Velocity Gains Don’t Stick
Randy Sullivan2026-04-24T09:10:43-04:00Walk into almost any bullpen at the beginning of the [...]
The BS Side of “Data-Driven”
Randy Sullivan2026-05-11T09:45:44-04:00Everywhere you look in baseball right now, somebody is bragging [...]