Wanting to trade back and actually trading back are two different things. Everyone realizes the fact that there is plenty of talent in rd. 2 and thus folks are reluctant to trade and may place a higher value on that #2 than it is worth.
Trading down would be a great move, but it will be difficult to find a trading partner who won't want too much for the move - unless there is that one team who must have that one player available at 15.
So, if it doesn't happen, don't blame Loomis. It might just not have been a doable proposition.