ZiPS WAR and salaries for Jose Reyes. RoS 15: 0.9/$7 mil, 2.0/$22 mil, 1.8/$22 mil, $4 mil buyout taken.
ZiPS WAR and salaries for Troy Tulowitzki: RoS 2015: 1.7/$7 mil, 2016 4.7/$20 mil, '17 4.1/20, '18 3.7/20, '19 3.2/20 '20 2.8/14, 21 2.4/15
ZiPS has Tulo contract value at +$40 million. Reyes at -$20 million. So you could argue they just bought Miguel Castro for $60 million.
If Castro is the main piece going the other can't see anyone cannot like this.