Tim Tebow faced some of his sharpest critics Friday with the same smile and charm he used for the past four years to enthrall the Florida Gators' faithful.

Tebow, surrounded at his podium during a 15-minute session with the media at the NFL Scouting Combine, described the work he has been doing on his throwing mechanics as more of a "tweak" than an overhaul.

And he said he will do whatever is necessary to succeed with the NFL team that drafts him. But that doesn't mean he is willing to try a new position.

"I want to be a quarterback in the NFL," he said. "It's been my dream since I was 6 years old."

Tebow, who won't throw during his workout here Sunday, was asked repeatedly about his work to change his throwing motion and why he waited until after the end of his college career to do it.

"It's something we talked about, but we had some success, so it wasn't something we wanted to change," lingerie wholesale said Tebow, who won a Heisman Trophy and two national championships at Florida.

Tebow downplayed the extent of the changes he is making to meet the demands of the NFL.

"It's not necessarily changing my whole motion; it's more where I'm holding the ball and my motion where I'm throwing it from," he said.

CBS analyst and former NFL quarterback Rich Gannon said he was concerned by ESPN footage he had seen of Tebow's new motion.

"He was dropping back and was real stiff, like a high school kid would drop back," Gannon said. "He's got some good people working with him, but I've seen some of the things they've been doing where I'm not sure if it's the best thing."

Tebow spent time both before and after last month's Senior Bowl at D1 Sports Training in Franklin, Tenn., where his mentors have included former quarterback Zeke Bratkowski, former NFL coach Sam Wyche and offensive coordinator Marc Trestman. Gannon said he understands that Tebow will work with former Tampa Bay coach Jon Gruden after the combine.

"I'm just concerned that so replica tag heruer watches many people are in his ear, to tweak this and fix that and do that," Gannon said. "I really think he just needs to get to a situation and get some good coaching."

Tebow said he got just that during last month's Senior Bowl, where he spent the week leading up to the game working with the Dolphins' coaching staff, including quarterbacks coach David Lee.

"I learned a lot from coach Lee," Tebow said. "He was a great coach. We worked a lot on different drops, coming out of play- actions, different adjustments."

With the April 22-24 NFL Draft fewer than two months away, Tebow knows he'll soon work with yet another staff. When asked if, as some suggest, he might have to hold a clipboard for a year or two while awaiting his chance, he said he is willing to do so.

"But that's not going to be my goal," he added. "I want to be the best player I can be when I step in, so you tell me what I have to do and I'll start working on it."

Just where Tebow will be selected is the subject of debate. CBS analyst Charley Casserly said he has spoken to 16 NFL teams and received a variety of opinions.

"Most have a major question about the guy's ability to play pro quarterback," he said. "I did have a couple of teams rate him in the first round. But the vast majority have questions about accuracy, t
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