http://www.ledger-enquirer.com/mld/ledgerenquirer/sports/10850251.htm
So it looks like if money is the main factor in Mangini signing with any team, Miami would have the edge. However I have been reading some other articles and it seems that he is very loyal to Bellichick and might remain with them no matter what the Fins or the Browns offer.
A bidding war could be in the offing for New England Patriots secondary coach Eric Mangini, who began his NFL career as a defensive assistant with the Browns in 1995. His contract expired Sunday, and the Browns could be one of four teams - along with the Patriots, the Miami Dolphins and the San Francisco 49ers - interested in Mangini. New England has reportedly set a $750,000 cap on what it is willing to spend for Mangini.
So it looks like if money is the main factor in Mangini signing with any team, Miami would have the edge. However I have been reading some other articles and it seems that he is very loyal to Bellichick and might remain with them no matter what the Fins or the Browns offer.