Five years from now, Shelby Miller could be the ace of a St. Louis Cardinals pitching staff that leads the league in every major category.
Alternatively, he could be out of the league altogether while the 2018 Cardinals wind up allowing more earned runs than any other team in the history of baseball.
The moral, of course, is that we have no idea what the future holds. Players who are currently projecting as future All-Stars for Team A could get injured or traded to Team B—or in many cases, both. The further out you try to project, the more it resembles science fiction.
But based on the knowledge that we have and the promise that we see in these young pitchers today, here's a prognosis of the best starting rotations in the years to come.
If these aren't 100 percent accurate five years from now, be sure to look me up and ask for a refund.
*All statistics are courtesy of FanGraphs.com, ESPN.com and MLB.com and are accurate through the start of play on Wednesday, July 3.