I hate being "that guy."  I feel tacky even asking a fantasy question, but it's not like there is any other football to get excited about.  I have a trade proposed to me in my Dynasty IDP league.  He is offering Derrick Johnson and the #30 pick in the rookie draft in exchange for Chad Greenway.  1 point per tackle (or assist) + 6 for a sack.  At first glance my reaction was to jump on it... then I started doing my homework.  Greenway is a monster every single year in the tackle department.  Johnson had a great year last year, but can that be counted on to continue?  Is he now a fixture in the middle for KC or was he just playing for a contract... soon to be relegated back to the doghouse?   KC fans help me out.  Thanks.