What veteran QB would suit Dolphins?

So many teams could stand a quarterback upgrade, and not all of them will be able to draft one who can make an impact. Some clubs might not be willing to commit the time required to developing one.

That's why draft monger Mel Kiper has put together an ESPN Insider column that ranks the best quarterbacks who should be available via trade or in free agencyInsider.

The Miami Dolphins, with the 15th overall pick, probably won't be able to draft an immediate difference-maker at quarterback and would be open to exploring trade options.

In Kiper's mind, Cincinnati Bengals quarterback Carson Palmer is at the top of the list followed by Philadelphia Eagles backup Kevin Kolb, Denver Broncos alleged starter Kyle Orton, Green Bay Packers backup Matt Flynn, Washington Redskins yo-yo Donovan McNabb and free agent Vince Young.

The Buffalo Bills are interested in drafting a quarterback, but they're comfortable enough with Ryan Fitzpatrick a trade is doubtful.

In another ESPN Insider piece, Chris Sprow examined whether there's an immediate starter in this year's draft class.Insider Sprow doesn't come away impressed.

"Even your top two guys on the board are facing a serious learning curve," an unnamed general manager told Sprow. "These aren't NFL offenses, and these aren't seniors in the case of [Blaine] Gabbert and [Cam] Newton."

Sprow cites an amazing stat to illustrate how harrowing it is for a team to trust a rookie quarterback: Teams are a combined 372-700 over the past 18 years in seasons when they have a rookie QB throw at least 50 passes. Those teams averaged 10.5 losses.