This is from an article on CBSSports.com where Joel Corry from Premier Sports & Entertainment, a firm that represented NFL free agents, predicts the value of contracts some of the top FAs are likely to receive. It was interesting to note that every single one of the players on his list were outside the Bengals price range (including Darren McFadden) and that MJ was rated the 4th best DE by PFF and actually improved his overall stats despite the steep decline in sacks. He was a little high on the offer MJ received (see the link for the actual signing with Tampa Bay), as MJ signed for just a little bit more than what Dunlap was signed for last year but with a lot more guaranteed money (Dunlap received $39.37 Mil over 5 years with only $11.7 Mil guaranteed), so maybe there's still hope for a McFadden signing, if nothing else.
I'm reprinting the predictions for MJ and McFadden below and here are the links if you want to read the article yourself:
Defensive end Michael Johnson
Contract package: 5 years, $60 million
Guaranteed money: $34 Million
First three years: $39 Million
Johnson's sack total dropping from 11.5 in 2012 to 3.5 in 2013 doesn't paint an accurate picture of his pass-rushing ability. According to Pro Football Focus (PFF), Johnson's 61 quarterback pressures (combined sacks, quarterback hits and quarterback hurries) in 2013 were six more than he had in 2012. He had two fewer pressures than Chris Long, who signed a four year, $48.2 million contract extension (includes $36.76 million guaranteed) with the Rams in 2012. Johnson also was PFF's fourth-rated 4-3 defensive end in 2013 partially because of his play against the run.
Running back Darren McFadden
Contract package: One year, $3 million (fully guaranteed)
McFadden never reached his potential during six seasons in Oakland because he was constantly plagued by injuries. He hasn't played more than 13 games in a season and has missed 29 games during his NFL career. McFadden can afford to take a one-year "prove-it" deal since he has made slightly more than $42 million on his rookie contract as the fourth overall pick in the 2008 draft. Rashard Mendenhall received a fully guaranteed one-year, $2.5 million deal (with another $1 million in incentives) from the Cardinals in 2013. McFadden will be in a better position to capitalize financially in 2015 if he can return to his 2010 form where he rushed for 1,157 yards, his only 1,000-yard season, and was sixth in the NFL with 1,664 yards from scrimmage.