"I feel very comfortable with him with the offense," Carroll said. "He seems to have a sense for it. He's not lagging behind any of the learning at all. Charlie has a terrific arm and a nice release and all that kind of stuff. The physical stuff is there. Up to this point Charlie has done everything we've asked of him, and I think he's confident in what we're doing right now.
"But it's going to come down to playing time and to see how he does, and how he handles game situations."
That's the key issue for Seattle. The 27-year-old out of Clemson has never thrown a pass in a regular-season game in his four years in the league. And his preseason numbers are nothing to write home about.
In preseason action Whitehurst has thrown for 1,031 yards, completing 53 percent of his passes with five touchdowns and seven interceptions. He's also been sacked 13 times.
Carroll said that he expects Whitehurst to play a lot this upcoming preseason, and again reiterated one of the reasons the team made the trade for Whitehurst with San Diego is the Seahawks see him as a future starter.
"We think he can become a starter and be a heck of a football player," Carroll said. "We love the fact that he can move. He's got good feet and mobility. So there's nothing but upside at this point, but there are going to be challenges once he gets out there. But so far he's done very well."
--The Seahawks signed veteran quarterback J.P. Losman this week to fill the team's third-string quarterback position.
Seahawks' general manager John Schneider said Losman had an unbelievable workout for the team, which eventually led to Seattle signing him to a one-year deal worth $630,000.
Losman, 29, fits the mold of quarterback that Schneider likes -- a big, strong guy who can move. The 6-foot-3, 220 pounder out of Tulane was drafted in the first round as the No. 22 pick overall in the 2004 NFL draft by Buffalo.
However, Losman never translated his physical talents to wins on the field for the Bills, finishing with a 10-23 record in Buffalo. Losman spent 2009 with the Las Vegas Locomotives of the UFL before finishing the season with Oakland.
--With Seattle signing Losman the writing was on the wall for second-year quarterback Mike Teel. The third-string quarterback was waived from the team's active roster this week.
A sixth-round pick in 2009 out of Rutgers, Teel did not see any regular-season action for Seattle. But he completed 20-of-41 passes for 238 yards, with three touchdowns and an interception in preseason action for Seattle last year.
Teel said goodbye to Seahawks fans via twitter: "Thanks to everyone in Seattle. All of you have been great, I enjoyed my time here."
--So far, so good for Seattle's revamped offensive line. Seattle drafted rookie Russell Okung with the team's No. 6 overall pick to play left tackle after Walter Jones announced his retirement.
Sean Locklear has been moved from left tackle to his more natural right tackle position, while veteran Ben Hamilton has been brought in to mentor Okung and play left guard. Chris Spencer has been moved to his more natural center position from right guard, and second year player Max Unger is filling in at right guard after playing center the last three games in 2009.
"The right side has been looking great," said offensive coordinator Jeremy Bates. "Max has been looking strong and is doing everything we heard he could do. He's really into the game and loves football and wants to max out. Every day, he's very consistent.
"And Sean (Locklear) is back to his natural position at right tackle, which he has played extremely well in the past. He looks natural there. Watching him is great to see because he looks so strong. And then Chris Spencer at center is the captain of the line. He's working hard, has all the calls down and he's going to be running this line and leading them to exciting levels this season."
--Seahawks vice president of player personnel Ruston Webster is leaving to join the Tennessee Titans in a similar job.
It's a place Webster almost ended up three years ago, losing out to current Tennessee general manager Mike Reinfeldt for that position. Webster was hired by former president and general manager Tim Ruskell in 2006, and served as Seattle's interim general manager when the team fired Ruskell in December.
Webster was considered for the position, but once the team hired John Schneider, Webster retained his position of vice president of player personnel, while Will Lewis was elevated from director of pro personnel to vice president of pro personnel.
Along with Reinfeldt, Tennessee's director of pro scouting Lake Dawson also worked for the Seahawks.
The Seahawks also promoted Scott Fitterer to director of college scouting and Eric Stokes to assistant director.
QUOTE TO NOTE: "He came in and was extremely focused. He's on a mission -- he wants to be as good as he can be as fast as he can be. He came in and all he wanted to do was work. He wasn't into the spotlight of being a first-round draft pick or any of that. He's focused on learning the offense and understanding the technique and fundamentals and hopefully he can dominate in the future. He's got some time to go before he learns the offense but we're excited for him." -- Seahawks offensive coach Jeremy Bates on first round draft pick rookie offensive tackle Russell Okung.