How would you create a 5e NPC?

@toshle123ee @JeremyECrawfordHow would you create a 5e NPC? Instead of the monster stats, using player stats
i comp final stats to CR guid, simplify. For instance, champion fighter, pick 1 – 3 scaling spells for casters

— Mike Mearls (@mikemearls) August 11, 2015