H2H - anyone start Marcum vs Boston today?

[cs3]

debating whether to start marcum vs boston today.
I had halladay get shelled by sf yesterday and now DLR is headed to the disabled list so ill miss his start this week as well...
i have 3 counting stats that he cant hurt me with and loss's dont count, but is it worth the era risk to start him?

CATS:
W SV K ERA WHIP QS

SP Roy Halladay (Phi - SP)
SP CC Sabathia (NYY - SP)
SP Shaun Marcum (Tor - SP)
SP Matt Garza (TB - SP)
RP Andrew Bailey (Oak - RP)
*****BN Jorge De La Rosa (Col - SP)*****
BN Brian Matusz (Bal - SP)
BN Tommy Hanson (Atl - SP)

[cs3]

fwiw im starting him.
as long as he gets into the 6th inning doesnt give up more than 4ER he cant really hurt me so im keeping my fingers crossed