Trade down?

after reading about this trade today, i came to the very same conclusion...... ive read over and over and over and over again that the Jets were extremely high on Mingo. now that they have 2 draft picks, both ahead of us, i agree..... they will not let him get by them twice if he is still there. so im starting to think its Jones or nothing out of the first. although with as many picks as the 49ers have at their disposal and as many players as they seem to be bringing in for workouts, i wouldnt be totally shocked if they gave up 2 or 3 picks to trade up to the 15th spot