Yankees: Thoughts on top five pinstriped prospects

From Sheffield to Acevedo
Sheffield went to the Arizona Fall League to make up the regular season innings he missed due to the oblique injury and ended up becoming the starter of the AFL All-Star Game.
Scouts were quoted as saying from his very first start in Arizona that he had No. 1 starter-like stuff:
Scout the other day on Justus Sheffield's opening AFL start: "That was No. 1 starter-type stuff right there." #Yankees
— Josh Norris (@jnorris427) October 12, 2017
The Pinstriped Prospects’ scouting report on Sheffield pinpoints control as the key to his season.
While noting that he had improved his control in 2017, they pointed out that he will only become more efficient as his control continues to grow in 2018.
Sheffield has a 92-97 mph fastball, mid 80s slider and a changeup. He could have three-plus pitches when all is said and done.
Fans will get a glimpse of Sheffield’s talents in Spring Training as he has also received an invite.
Randy Miller of NJ.com speculates that if Sheffield is lights out in Spring Training, the Yankees may want to keep him around, and, further, that:
"Sheffield is mature for his age and has three big league pitches."
Domingo Acevedo
Domingo Acevedo is ranked No. 4 among prospects in the Yankees’ organization by Pinstriped Prospects. Acevedo was signed as an International free-agent in 2012 out of the Dominican Republic. He’s a big pitcher, 6’7″, 250 lbs that had a breakout year in ’17.
The 23-year-old right-hander threw a career-high 133 innings with a 6-6 record and 3.25 ERA in 23 starts across three different levels; Tampa, Trenton and Scranton Wilkes-Barre.