That was horrid coaching. He also relies too much on Bortles and not his stud RB (thought hey may be because of his ankle). EIther way, he puts way too much in the hands of Bortles in close games when he doesn't have to.
But that 2nd down pass, was stupid even if you had a good QB. If they were running a hurry-up on each play, maybe. Or if they weren't struggling for a playoff spot and put caution into the wind. That needless pass (from a shitty QB to a decent WR with a drop problem, who was covered well and was not going to get a large gain if he caught it) was just bad playcalling