Baumann dominated Class A hitters for seven starts with Delmarva before moving up to Frederick. He put up solid numbers the rest of the year in the Carolina League, but Baumann didn’t miss nearly as many bats in High A, underlying some concerns scouts have about his ability to start at higher levels.
Baumann’s fastball lost some velo as his first full pro season went on, touching 95-to-96 mph in April but working in the low-90s by year’s end. He limits walks but doesn’t command the heater well within the zone, working mostly over the middle-third of the plate with a straight four-seam fastball. Baumann flashed a solid slider when I saw him during Instructs in 2017, but this year he worked mostly with a fringy curveball that showed early and lacked sharpness. He improved a straight high-80s changeup as the season progressed, but it still lacks movement and grades as a below-average pitch.