Desire to trade Kaepernick in 2016 could keep him on the field

On the surface, a decision by the 49ers that they’re done with quarterback Colin Kaepernick could trigger a decision to get him off the field, given that his contract still has more than $31 million guaranteed for injury only. At a deeper level, the 49ers will hope to generate trade value for Kaepernick, which will tempt…