These new PS rules are permitting Bears to not keep a kicker on the 53 man. They can bring back Santos 3 times from the PS before he has to be released. And it so happens that Piniero's IR stint is the same number of games: 3.
If Piniero is good to go in 3 weeks it may all work out. Just go to hope Santos can be efficient for the first 3 games.
But what if Santos is better than efficient?