In the last two days, third baseman Ke'Bryan Hayes has been mentioned twice as a potential breakout player, who just missed top 100 prospect lists. Jim Callis named him as the best third baseman, among players who missed the top 100 for MLB Pipeline. Callis based his list on the players who could see the most growth in 2016. The link includes a scouting video of Hayes from his senior year in high school last year.
Today, Keith Law followed up his top 100 list with the ten players who just missed his list(subscription required). Hayes was the main player mentioned in the article, getting the title and photo.