Welcome back to my annual off-season series that has a quick-and-dirty review of all 30 minor league systems around baseball. This feature began way back in 2008.
If you were perusing this series back in 2015 you would have read:
The Riser: Dan Altavilla, RHP: Altavilla, 23, doesn’t have a huge ceiling but he had a very promising year and the organization didn’t see that much in terms of huge prospect value spikes in 2015. The under-sized righty can touch 96-97 mph with a promising slider and showed a propensity for the strikeout while playing in a tough league for pitchers (The California League). The consensus seems to be that Altavilla is bound for the bullpen but Toronto’s Marcus Stroman has shown that size really doesn’t matter — but the Mariners prospect will need to create better plane on his offerings to mimic the Blue Jays’ breakout star.
Now on to the new stuff:
First Taste of The Show: Matthew Festa, RHP: The Mariners didn’t rely heavily on the minor league system in 2018 so the rookie contributions were pretty thin. The most intriguing player for future value is Festa. He has a nice fastball-slider combo with a couple of other offerings he can sprinkle in for fun. His ceiling is probably seventh-inning guy but he could be a solid-but-unspectacular contributor to the ‘pen if continues to throw strikes and keep the ball down.