I'm too conservative to be a modern day coach... The key is early in games. If my team scratches and claws it's way down to the 7 yards line, and it's 4th and 2 with 10 minutes to go in the FIRST Qtr, I kick the chip shot FG. Just take the points. All these NFL games seem to come down to 3-6 point margins. So many clubs this year are blowing off the easy 3 and getting nothing.
I would start going for 4th downs, if necessary, in the 2nd half when my team is down and the situation (momentum) is critical.
Thankfully McDermott has made the right decision more often than not recently.