The only thing that is surprising to me is no backup NT, Chigbo and Shirley were both cut. Here is the full cut list:

The Indianapolis Colts today waived the following players:

WR-Jeremy Ross, RB-Darren Evans, TE-Andre Smith, T-Mike Tepper, C-Zane Taylor, T-Steven Baker, DT-Jason Shirley, ILB-Greg Lloyd, TE-Kyle Miller, G-Hayworth Hicks, OLB-Jerry Brown, S-Latarrius Thomas, DT-Chigbo Anunoby, WR-Kashif Moore and LS-Justin Snow.

The Colts Waived-Injured RB-Deji Karim, DE-James Aiono, OLB-Tim Fugger, CB-Brandon King and S-Mike Newton.

The Colts placed WR-Jabin Sambrano and CB-Korey Lindsey on Injured Reserve.

I am sure they are looking for for a backup NT and OL.