I saw that article on NFL.comFUBAR said:Really happy to see wiz likely to get the lions job. Happier still that Grimm could join him.
This one seems to say they were impressed with Caldwell http://www.freep.com/article/20140104/SPORTS01/301040054/detroit-lions-matthew-stafford-interview-head-coach
Interesting also that both are presumed to hire the same DC