Most days, he has liked what he has seen.

Most days, the concentration has been good.

Most days, the Colts have been sharp.

Thursday, the Colts’ head coach said, was a rarity. Because Thursday was not such a day.

The Colts, three days from breaking camp, had a sluggish practice on Thursday morning, according to Dungy. And afterward, Dungy said the team needs better focus through the last five practices of 2007 Training Camp.

“It was a little bit sluggish today for us,” Dungy said Thursday following a morning practice at the Rose-Hulman Institute of Technology.

“We had some errors and mistakes in some of the drills. We had a night off (from meetings) last (Wednesday) night. We’re kind of getting to that time where concentration is maybe not the highest. We’ve talked about it and I think our veterans will get those points across to the young guys that it’s really, really important to concentrate this time of camp.”

The Colts, who opened camp on July 30, are scheduled to practice Friday and Saturday, then break camp after a Sunday morning practice.

The Colts, who lost to the Dallas Cowboys, 23-10, in the preseason opener, will play the Chicago Bears on Monday night in the preseason home opener at the RCA Dome.

Overall, Dungy said, the first two and half weeks of camp have been solid.

“This is probably the first disappointing day we’ve had where we didn’t make progress,” Dungy said. “But all in all, I think we have worked hard. We’ve built a foundation.”

In other Colts news, outside linebacker Freddy Keiaho missed practice morning with what Dungy called “leg soreness” and cornerback Tim Jennings missed with an ankle sprain he sustained in practice Wednesday.

A continuing storyline is the development of defensive tackle Ed Johnson.

Johnson, an undrafted rookie from Penn State University, started the team’s preseason opener against the Dallas Cowboys and had two sacks. With Anthony “Booger” McFarland on the injured reserve list, and with third-round selection Quinn Pitcock having missed time early in camp with a hamstring injury, Johnson has continued to work with the starting lineup this week.

Johnson, who started 18 of 34 games at Penn State, had tackles for loss and five sacks as a senior, and has been impressive this week in practice, Dungy said.

“He did some things in the goal-line and short-yardage scrimmage that we hadn’t seen in a while – that type of penetration and quickness off the ball,” Dungy said. “So he is doing a good job.”

Johnson is just one of several Colts undrafted rookies and relative unknowns having impressive camps, Dungy said. Enough rookies are playing well enough, he said, that the picking the roster this season likely will be difficult.

“We were talking about it the other night as a coaching staff, that we’re going to have some really tough decisions at a lot of positions,” Dungy said. “Some of our guys who are really doing well on special teams, we’re going to put an emphasis on that.

“Some our guys, like (wide receiver) Trent Shelton and Ramon Guzman, right now might not be in the top group at their position, but they’re standing out in special teams. It is going to be a tough situation, how we go.

“I think we’re going to have a lot of good players to look at at that last cut.”