Well sooner or later, the Jays are going to have to trade somebody. Out of Hudson, Adams, and Hill, one of them has to go (maybe not in the next few days, but soon).. Right now, Orlando Hudson would have the most value of these 3, and with this being the final year of his contract before a big payday, this would be the perfect time to trade him.
J.P. should continue with his plan of contending in the next few years, and not get caught up in the fact that we are 5 games out of the playoffs. Because really, we are still a longshot to make it, with so many great teams in front (Yankees, Bo-Sox, Twins, A's, Rangers). After Kansas City, we have an extremely tough schedule comprised of Anaheim and Texas in the weeks following that series. I'm not totally sure they can survive this stretch without Doc, especially since they couldn't even manage to split a series vs Tampa.
If Frank Catalonnato and Shea Hillenbrand are pieces of the puzzle in which J.P. finds good players for in the next few years, then he shouldn't just abandon "the plan" because the Jays are on the verge of contention this year. Hillenbrand and the Cat are expendable in order to find another starter, or a power hitting first basemen. They would be the first to go if there was a trade, because teams are likely interested in them.
I'm not exactly sure they can send Hinske back down to the minors, without risking him getting picked up on waivers. It's because he's played in the league longer than 3 years or something of that sort..
They are stuck with his hefty contract no matter what... He seems to be heating up lately though.
If the Jays do make a deal, they will be buyers and not sellers. That is for certain.