McDonagh blossomed at the same age while in his first year under contract for the same term, with a new coach, and a cap-hit % in 2013 that was just 0.71% higher than Skjei's is now. No pressure.
Skjei is an excellent skater, carries the puck well at speed, has some question marks regarding his defensive-zone capabilities, and is the only defender we can be certain will have a future on this team in three years.
He also apparently has a pulse during the post-season, which may end up being his most valued attribute down the road.