Phillies: Bryce Harper domino effect could last decades

Young prospects are more likely trade bait
If the Phillies add Harper it makes their crop of young outfield prospects even more likely to be traded in the near future.
First round picks Mickey Moniak and Adam Haseley fell off top-100 lists last year but were still relatively productive and were invited to big league spring training this year.
Haseley reached Double-A Reading last year and could see time in Lehigh Valley next season, while Moniak, the number one overall pick in 2016, finished with Clearwater.
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Moniak has been the most disappointing of the two, but his bat did pick up late last year, finishing with a .270 batting average in 114 games. He’s still adjusting to being a professional athlete and playing a high number of games, plus he’s just 20-years-old, fresh out of high school.
In addition to those two top prospects the Phillies have Jhaylin Ortiz (who regressed last year), Cozens, Quinn, Williams, and Altherr available. Ortiz went from being a top-10 prospect in the organization last year on MLB Pipeline’s list to not making Baseball America’s top-10 this year.
Some of what the Phillies do with their prospects will depend on the type of contract Harper signs and a couple of other things. If Harper signs a deal with an opt-out in three years the Phillies might want to hold onto some outfielders as insurance.
Obviously, not every outfielder will be traded, but if the organization needs to add a pitcher their outfielders could be hot commodities.