Over the past few weeks, indications have emerged that the Dolphins aren't thrilled with the performance of quarterback Chad Henne. Last month, Vic Carucci of NFL.com characterized former V.P. of football operations and current high-level consultant Bill Parcells as "very disappointed" with the 2008 second-round pick.

In garbage time on Monday night against the Patriots, Henne was yanked for Tyler Thigpen.

On Tuesday morning's SportsCenter, ESPN's Chris Mortensen acknowledged that the team is concerned about Henne. Mort also suggested that Chad Pennington could eventually replace Henne.

But the 34-year-old Pennginton isn't and would be the future. Mort says that there's talk that Pennington would "bridge the gap" to Tyler Thigpen.

Dolphins Inactives
Patrick Brown T
Channing Crowder ILB
John Jerry G
Jeron Mastrud TE
Marlon Moore WR
Jared Odrick DE
Robert Rose DE
Tyler Thigpen QB

Dolphins Inactives
Ikaika Alama-Francis DE
Patrick Brown T
Channing Crowder LB
John Jerry G
Marlon Moore WR
Jared Odrick DE
Mickey Shuler TE
Tyler Thigpen QB

Ever since Pat White skipped the first day of training camp with “personal issues,” much of the talk around camp has revolved around, “how quickly will the Dolphins get rid of him?”

But let’s be honest — the quarterback on Miami’s roster with any real trade value is Tyler Thigpen, not White, who has not shown at all that he can play quarterback at this level.

The Dolphins have no real attachment to Thigpen — they picked him up in a panic last year when Chad Pennington went down. Chad Henne is the present and the future at quarterback, and Pennington is healthy again, so keeping Thigpen, a talented but raw fourth-year quarterback, around is more of a luxury than a necessity.

Chad Henne is the ONLY QB on Miami's roster with fantasy value. God help them if he gets hurt.

The Pat White situation needs to be resolved soon, because he’s taking away reps from the other quarterbacks: It’s not that Chad Henne isn’t getting enough opportunities in practice, but with four quarterbacks in camp, Chad Pennington and Tyler Thigpen aren’t getting as many at-bats as they should to help them prepare should they be called on to play.

White’s play in training camp has bordered on awful. Tuesday, he overthrew Taurus Johnson on a 20-yard pass in which there was no defense. He skipped the first day of camp with “personal issues,” and clearly isn’t in the Dolphins’ long-term plans, following a terrible rookie season and second shaky training camp. The Dolphins would be best served cutting bait with White sooner rather than later, so the other quarterbacks can take more reps in practice.

In the battle to be Miami's backup quarterback behind Chad Henne, Chad Pennington clearly has an experience edge over Tyler Thigpen and Pat White. But the coaches, and possibly Pennington's surgically repaired throwing shoulder, won't even let him enter this position battle.

According to coach Tony Sparano, this contest is between his two young arms. Thigpen, who started in Kansas City, has an experience edge over White. He also has a tendency to make things happen through improvisation. White, who struggled with his accuracy last season, has shown some improvement during the offseason. But will it carry over into camp and the exhibition season? White's bigger and stronger this season, but still has a ways to go before he proves he's an NFL quarterback.

Can the Dolphins really carry four quarterbacks?

Considering Chad Pennington, who is still recovering from shoulder surgery, rarely threw a pass during minicamp and OTA sessions, writer Omar Kelly sees no reason why he can’t be stashed on the PUP for the first couple months of the season.

Chad Henne is clearly the starter, and is exerting himself as a team leader. Tyler Thigpen has the edge on Pat White for the backup role.

White was in the game because starter Chad Henne said he’d developed blurred vision after he landed on the left side of his head on a sack by Pittsburgh linebacker LaMarr Woodley.

Henne said he played several more plays, but the condition worsened when he got to the locker room at halftime and sat down.

Rookie quarterback Pat White, who was knocked out of Sunday’s loss to Pittsburgh by a brutal hit along the sideline, is undergoing tests at the hospital that revealed a likely concussion, according to a source familiar with the situation.

White should be OK, the source said, but could remain overnight for observation.

White’s injury occurred with 2:12 remaining in the third quarter of the Dolphins’ 30-24, casting a chill over the stadium as medical personnel spent several minutes attending to the 23-year-old rookie.

Ultimately, medical personnel strapped White to a backboard and carted him off the field. Miami was forced to punt on the next play, paving the way for third-stringer Tyler Thigpen’s near heroics.

White was in the game because starter Chad Henne said he’d developed blurred vision after he landed on the left side of his head on a sack by Pittsburgh linebacker LaMarr Woodley.

“I was hoping it would clear up,” Henne said. “I just didn’t have (depth) perception on the ball. I was throwing fine on the sideline. I just couldn’t really visualize my throw.”

Henne said it will be treated as an eye injury and he’ll see an eye doctor Monday.

Dolphins inactives:
TE Anthony Fasano, LB Erik Walden, OT Andrew Gardner, DE Lionel Dotson, OT Lydon Murtha, DT Paul Soliai, RB Nate Ness, and QB Tyler Thigpen

As expected, the Miami Dolphins placed Pennington on the reserve-injured list to create a roster spot for quarterback Tyler Thigpen, who was acquired Tuesday from the Kansas City Chiefs for an undisclosed 2010 draft pick.