Let's try to make a approximate calculation,
Phins free agents signed in 2007:
Name Pos
Mike Rosenthal OT
Az-Zahir Hakim WR
Chris Liwienski G
Cory Schlesinger FB
Jay Feely K
Cameron Worrell S
David Martin TE
Phins free-agents lost in 2007:
Name Pos
David Bowens DE
Toniu Fonoti G
http://www.miamidolphins.com/newsite/team/roster/playerBio.asp?docid=22798
Jeff Zgonina DT
Darian Barnes FB
Travis Minor RB
Damion McIntosh OL
Sammy Morris RB
Eddie Jackson CB
The final count is 7 signed, 8 lost.
Remember FAs not signed by any other teams do not count and that signed players that were cut by another team also do not count (ie: Porter).
That should put the Phins in line for 1 comp pick.
Also to factor is that the height of the comp pick is depending froma complicated formula including playing time, salary and post-season honors. In that department FAs lost by the dolphins fare quite good, at least Morris, McIntosh Bowens, Minor and Barnes played extensively. In Miami, only Liwienski and Martin were starters, Worrell played more than expected while Feely is a Kicker.
So if these calculations are right, the Phins can expect 1 comp pick, whose height it tbd (but could be more than a 7th) plus yet another one because the draft has to last at least 255 picks and 3 teams are forfetting a pick. this measn that the Phins should get another one at the bottom, 254th or 255th.
That would bring the total to 9 picks, and the hope that the comp one is more than just a 7th.
* had to edit this message to correct a few facts*