Ranking the biggest NASCAR rule changes for 2018

Pit stops could be a lot more challenging this season and the term "Hawkeye" will get a lot of play. What else is different in the realm of officiating and procedures? Here's a breakdown.
Read more: http://www.espn.com/racing/nascar/story/_/id/22373021/ranking-biggest-nascar-rule-changes-2018?source=Snapzu