This is beyond an abridged version. He said that some things happened earlier in the draft that changed their board a bit. They had been eyeing Angerer, and liked him a lot. They had traded away their 4th earlier, and weren't sure if he would still be there by the time they picked in the 5th. So voila, you have the pick. They also tried ardently to get out of their pick in the 3rd and find another one, or get their 4th back, but couldn't, they where running out of time.
Mularky mention he really got his start in the league and made a career at being a special teams coach. It is something he won't put by the wayside, and is making it his point to make the special teams in JAX one of the premier units in the league. They need to win field position given the large question mark at QB.