It's not a lie if you believe it.

That line, made famous by George Costanza on Seinfeld, is all I could think about during Chip Kelly's unexpected press conference appearance today in Philadelphia. With the media set to meet some of the re-signed and newest Eagles, Kelly took the podium to answer questions about recent blockbuster moves and the motives behind them.

Among the Kelly quotes and answers:

-On the idea of trading up for Oregon quarterback Marcus Mariota: "Let's dispel that right now. I think that stuff is crazy. I think Marcus is the best quarterback in the draft, but we are never mortgaging our future to go up and get somebody like that because we have too many holes to take care of."

-On Sam Bradford's value: "I was offered a first-round pick for him this morning from another team. I think he has a tremendous skill set. He has a big, strong arm. He is intelligent. He is an accurate thrower. I think he's smart. I think he's wired right."

-On the front office power struggle with Howie Roseman: "I didn't think I needed control of personnel," Kelly said. "That was a decision that our owner made. I just had a meeting with him like I always do at the end of a season in terms of the direction of what we're doing and how we get from being a 10-6 team to a team that can win the Super Bowl. That was a decision that Jeffrey Lure made."

-On why LeSean McCoy isn't an Eagle: "You have to look at the money we freed up as an aspect to this as well. The way we look at it, we got Kiko Alonso and Byron Maxwell for LeSean McCoy. The bottom line is, almost every decision that you have to make is governed by money. You would keep everyone if you could pay everybody, but this isn't baseball. We're all limited by the salary cap and you have to give someone up to get something."

-On the drafting of last year's first rounder Marcus Smith: "Howie had final say last year. I didn't have final say...I didn't have final say over the past two years."

-On losing free agent wide receiver Jeremy Maclin to the Kansas City Chiefs: "With Mac, we did not want to lose him...we couldn't go as high as Kansas City went. I had a lot of discussions with Mac over the weekend. I know it was a very difficult decision for him."

Do you believe Kelly? Was the Eagles coach truthful with the media about Mariota rumors, his role in Roseman's job change and receiving a first-round offer for Bradford?

Vote in our poll and sound off below in the comments section!

Joe Giglio may be reached at jgiglio@njadvancemedia.com. Follow him on Twitter @JoeGiglioSports. Find NJ.com on Facebook.