Ken Rosenthal had an article saying that the Colorado Rockies should listen to offers for Troy Tulowitzki. He mentioned the Cardinals as possible trade partners. Ever since reading the Rosenthal article - I've kept wondering "What about Tulo to the Red Sox?"
The Red Sox have top prospect Xander Bogaerts ready to take over for Stephen Drew if Drew moves on via free agency but Bogaerts could just as easily shift to third. What about Will Middlebrooks who was the Red Sox opening day 3rd baseman last season and is on track to be so again next season? Put him in a package with Felix Dubront (an MLB ready starter with 4 more years of team control), Allen Webster (the key prospect the Dodgers gave up for Adrian Gonzalez) and one AA prospect. That's a pretty good 4 for 1 package.
For the Rockies - they get 4 cost effective players including a potential 30-HR 3rd baseman who can play right now in Middlebrooks. Colorado already has 22-year old Nolan Arenado at third and he just won the NL Gold Glove for 3rd basemen. The solution is simple - just move Arenado over to short. He used to be a shortstop and he doesn't have the pop in the bat that you'd want from a corner playing half his games at Coors Field. Dubront would immediately become the Rockies number 3 starter and Webster could be a number 1 some day.
For the Red Sox - they get a proven player who has a career road OPS of .819 - as a shortstop! Tulo's career home OPS at Coors is .934 which is like Big Papi at Fenway. Tulo could play short to start then as he gets older move to third, first or DH.
Of course as Rosenthal says - right now the Rockies say Tulowitzki is unavailable. The Red Sox should dangle my proposed package and see if they change their mind.