It would have taken Jon Niese and Zack Wheeler for the Mets to obtain a similar package to the one the Rays obtained, Andy Martino of the New York Daily News reports (on Twitter). Matt Cerrone of MetsBlog.com first reported this news four days ago.
Though the trade reflects a sense of urgency from the Royals, Bob Dutton of the Kansas City Star doesn't get the sense that GM Dayton Moore is on the hot seat (Twitter link).
ESPN.com's Buster Olney suggests the Rays will delay Myers' arrival at the MLB level to ensure he doesn't obtain a full year of service time in 2013. It's also possible that the Rays could look to extend the promising outfielder, Olney suggests. I agree with both of Olney's point here. There's no way the Rays can allow Myers to get a full year of service in 2013.
Six pro scouts don't consider the trade one-sided, J.J. Cooper of Baseball America reports. The Royals don't deserve the criticism being directed their way, the scouts told Baseball America.
The Royals tried to trade Myers for Shields straight up, but the Rays said no, Yahoo's Jeff Passan writes (Twitter links). The Royals also tried trading Myers to Oakland for Brett Anderson only to be turned down, Passan writes.