But ESPN's Keith Law had Vientos ranked No. 60 on his Top 100 prospects list -- ahead of Peter Alonso (No. 90), Andres Gimenez (No. 97), Ronny Mauricio (No. 99), and almost certainly any other Mets prospect (Law's No. 1through No. 50 rankings haven't come out yet).
Alonso and Gimenez appear on pretty much every Top 100 list, and Mauricio is seen by some as the highest-upside prospect in the organization.
Vientos, who was the Mets' second-round pick (59th overall) in the 2017 MLB Draft, has flown under the radar a bit, and is expected to open the 2019 season with Low-A Columbia.
MetsBlog's Matthew Cerrone recently listed Vientos among the Mets' most buzz-worthy prospects, with those he talked to all praising Vientos' bat speed and consistent swing.
"He's as close to a professional hitter as you'll find in the minors," one person said. "He's got raw power, but he'll need to go the other way more and reduce the hitch in his swing to fight off upper level pitching."
Vientos hit .287/.389/.489 with 11 homers and 12 doubles in 60 games this past season for Rookie level Kingsport of the Appalachian League. And one person Cerrone spoke with felt the Mets could potentially use Vientos as a trade chip in the summer.
"He's a prime choice trade guy," a scouting director told Cerrone. "He's intriguing, a natural, but flawed, which means that team will probably have no issue making him a nice added prospect during a mid-summer deal.
Vientos spoke with MiLB.com earlier this month about some of the things he learned in 2018.
"It was mostly trusting my hands," Vientos said. "The Appy League, we like to think, is a big hitter's league, but I was trying too much to drive the ball out every time, instead of letting the ball get to the gaps and getting my hits that way. When I would get two strikes on me, I really don't like striking out. I'd much rather hit the ball hard into play and letting things take over from there. So I'll choke up pretty good with two strikes, and that worked for me. I was still able to get the balls to the gaps, getting those doubles and hitting well when I was short to the ball and trusting my hands. Obviously, my strikeout rate dropped, too."
While Vientos hadn't appeared on any Top 100 lists before Law released his, he has been widely viewed since last season as one of the Mets' best prospects -- and a player who can become one of the better prospects in the game if things fall into place for him.