On the surface, the Mariners and Rockies might not seem to be an obvious fit for a trade. Both teams are coming off of bad seasons (though it should be stated that the Rockies were actually trying to win this past season) and look to need retooling.
The Rockies though committed big dollars to Nolan Arenado last February and he wants to be a part of a winner, not a rebuild, so it would be in the Rockies best interest to look to boost the core around their star third baseman.
The issue in Colorado though is that they don’t have the budget to go big in free agency, meaning they’ll either have to look for cheap upgrades on the open market or make some trades to fill the holes in their lineup.