While Jones has been sidelined by a hamstring injury and "general body soreness" early in camp, Eifert has been a revelation.
"We got good looks for him and he got open," Dalton said. "It's nice having him out there. He's a smart player who has a great feel for the game. We've been able to hook up for some big plays.
"Go back and look at his college tape and he's splitting out wide, jumping over guys and making catches. We feel like he matches up well with the all the guys he's going to face."
With veteran tight end Jermaine Gresham now in Arizona, Eifert's role will expand as one of Dalton's primary targets in the passing game this season.