DEF Help-Philly or Miami/Tenn? Long-term Akers vs Crosby?

[ezgoin92]

My roster needs help (I know I have too many kickers and need a QB2). But in the near-term (week 1) I am concerned about my DEF.
I'm not excited about the matchup for Philly, and honestly, I'm not sure I want to hang on to them for the season.

Notable free-agent Defenses with good match-ups this week include:
Miami (@Buffalo) and Tenn (vs Oak)

My question is - should I pick up one of these two and cut Philly? Or is Philly worth hanging onto?
I know I really should cut one of my kickers - but I am torn about which one - so please chime in with any thoughts on Crosby vs Akers.

This is a 10-team league with scoring is as follows:
1 pt per 25 yards passing -4 pts for a passing touchdown -1 pt per interception
1 pt per 10 yards for each rushing & receiving
6 pts for a rushing, receiving or return touchdown
2 pts for a 2-Point conversion
-2 points for each fumble lost

Here's my roster (and number of starters):
(1) QB Drew Brees (NO)
(3) WR Anquan Boldin (Bal), Pierre Garcon (Ind), Malcom Floyd (SD), Terrell Owens (Cin), Lee Evans (Buf)
(2) RB Michael Turner (Atl), Arian Foster, (Hou). C.J. Spiller (Buf), Reggie Bush (NO)
(1) TE Jermichael Finley (GB), Chris Cooley (Was)
(1) K Mason Crosby (GB), David Akers (Phi)
(1) DEF Philadelphia