Remember when reruns of TNG was out preforming new episodes of Stargate Universe?
ABC is replacing The Assets with reruns of Sharktank, I'm sure that CBS must have something just as cheap and nasty that's gold in even rerun ratings... The problem is that advertising was sold for an action drama that would appeal to te 25 to 35 crowd, the suits even probably pitched Intelligence as the new lost because it's got that guy from lost in it, so it will
make Lost Numbers...
There are massive penalties for pulling a show, and bad faith, especially if the replacement show targets the wrong demographics which makes it useless to clients.