"(We can do) anything we want to do,'' Kelce said, according to ESPN's Adam Teicher. "You name it. We've got 4.2, 4.3, maybe 4.1. I don't know what Tyreek (Hill) runs now. Who knows? We've got guys that can absolutely fly all over the field. Speed kills in this game. If you've got it, you're in the advantage.
"We're taking it up a level (from) years past. You can just tell from the coaches' excitement to their attention to detail to how guys are reacting to their coaching. This team is going to be awesome. We're going to have a lot of fun on the offensive side of the ball.''
"I can't, honestly," quarterback Patrick Mahomes said when asked if he could imagine a faster receiving corps. "We've got guys that can roll, guys that really stretch the field. It really makes my job a lot easier. We're able to stretch the field vertically and horizontally. You can either take the deep pass and throw it like that or throw it out in the flat and these guys can all take it 70 yards to the house.
"Adding Mecole and having Sammy back healthy this year is even going to help more. Defenses have to really pick and choose which matchups they want to take ... We look at the matchups and trust that the receivers are going to win."
The Chiefs owned the league's third-ranked passing attack and No. 1 overall offense last season.