People are really under estimating Kesler on these boards and some people under estimating him don't even spell his name correctly so I don't know how much they have actually watched him play. Right now we have a void at 1LW, 2C (if Schenn/Vinny don't step up consistently), and a 1st pairing D. Kesler has the ability to play on the top line with Giroux/Voracek and he has the ability to take advantage of weak competition while playing on the second line. Couts shouldn't even be in the discussion to trade though because he is a player you build around to match up against the top lines in the league.
I would be happy to see Kesler/Giroux/Voracek and Hartnell/Couts/Read as two lines this season.