"I love the tight end position," McCarthy said at a presser before the Packers' first padded practice. "We've used those guys in the backfield more than they are suited. ... With Marty and the ability to have an on-the-line tight end is something that we needed. ... At the end of the day, when you do a game plan or build an offense, it starts with the run. When you have the tight end on the line of scrimmage, you have a clear 'C' gap and 'D' gap responsibility the defense has to defend against the run. When you have two tight ends on the line, you have to defend eight gaps instead [of] seven and six gaps. ... We can throw the football. We have a great quarterback and receivers with rhythm and timing. ... But the ability to run the football and stress the defense from a formation and alignment location, your tight ends play a big role in that."