Then why do Centers never ever get drafted in the first round if they are soooo important while LT's DOMINATE the 1st round more than any other position? In 2013 3 of the first 4 picks where LT. I bet 3 Centers havent been drafted in the first round in the last 5 years and NONE before pick 20?
Centers have to be able to recognize defensive schemes/call plays and they have to form a rapport with their QB they aren't as plug and play as the other o line positions. Usually even first round centers end up playing guard for a year or 2 while they adjust to the pro game.