Because of the body type and multifunctional skill-set, tight ends are quickly becoming the NFL quarterback's best friend.
Tight ends can be broken up into two categories. The traditional tight end, commonly referred to as the "Y" in most offenses, often patrols the short to intermediate section of the field in the passing game. But, most important, he blocks the point of attack as an in-line blocker in the running game or secures the edge in pass protection by assisting the tackles with the speed rush on either edge of the line of scrimmage.
Then there is the more sexy "flex" tight end option that is a major factor in the passing game, often running routes from a variety of alignments on the field. The flex tight end might line up in a traditional wideout alignment outside the numbers, or he might line up as a flanker off the line of scrimmage, or, in some cases, he might even join the running back in the backfield, where you would normally see a traditional fullback.
This type ...