Zbikowski was the Colts starting SS for 11 games last year; had 5 PD,1 Int,1 sack, 27 tackles. Not sure how many tackles were ST. He was a good punt returner in college, and did some returns for the Ravens. But none for the Colts.
It's an odd signing, considering we have backups Steltz and Hardin.
I don't know who should be more worried, Steltz or Hardin. Steltz has played S well in relief for the Bears. Being all three are likely to play ST, Bears would carry 5 Safeties. The signing could mean Hardin may be tried at NB. Still, with vet min, Bears don't lose anything by cutting the worst S after training camp (besides the other pay).
I don't think Hester and Weems are worried. But I wouldn't be surprised to see him take some returns in preseason.