I do not believe they cut Tai, i think it was he was a restricted FA which means they have the chance to match any offiers he may field, TO and Garcia have been the big names so far I will have to look and see what is up with Tai for sure though................
I checked and it seems Tai is an UFA which means he is free to go as he pleases with whoever he feels has made the best offer according to ESPN.com
http://proxy.espn.go.com/nfl/fa?positionId=1