"Be realistic ... perhaps Mookie Betts for five years of 23-year-old outfielder Alex Verdugo would work."
Ya, I'm not basing my unrealistic expectations on one website that admits their values are "a probalistic model... where nothing here is absolute, but rather, a best guess based on the data available"... because I can't put a number on a player's intrinsic value to his organization and its fanbase.
Instead, I was thinking more of the many website hits I got by merely Googling "Betts trade Dodgers". That's where I found several proposals from writers, including professionals who work for MLB.com. Here are just some of their suggested LA packages for Mookie: May, Ruiz, Pederson; Lux or May, Ruiz, Pederson; May, Pederson, Downs; Verdugo, Seager, Cardillo; Lux, Ruiz, Pollock.
Another MLB writer listed, "Some Dodgers prospects who could interest the Red Sox would be Jeter Downs, Tony Gonsolin, Josiah Gray, Gavin Lux, Dustin May, Keibert Ruiz — all young, all affordable. They could also be interested in the likes of Matt Beaty, Edwin Ríos, Ross Stripling, Julio Urías and the aforementioned Verdugo".
Prospects, suspects, call them what you want -- their teams know they have to give up something to get something. And the Boston braintrust is smart enough to wait them out.