The Detroit Lions may not be trading for another defensive tackle, but it appears they are indeed looking to bring in another veteran at the position:
Lions are meeting with DL Mike Patterson, one option to beef up the line as I mentioned recently. Would be a reunion with Jim Washburn— Jason La Canfora (@JasonLaCanfora) May 27, 2015
Mike Patterson, as Jason La Canfora mentioned, played under Jim Washburn in Philadelphia for a couple of years. Patterson was actually with the Philadelphia Eagles from 2005-12, and he ended up playing for the New York Giants the last two seasons. In 2014, he made eight starts and had 27 tackles for the Giants.
Interestingly enough, the Lions actually expressed interest in Patterson back in 2013 after his time in Philadelphia came to a close. He reportedly visited the Lions, but no deal ever came about. Instead, he joined the Giants later in the offseason, and that was that.
Now, with Patterson still on the open market this year, it appears the Lions are making another attempt to sign him. I have a hard time believing he will make the 53-man roster even if the Lions do add him considering he would presumably be behind Haloti Ngata, Tyrunn Walker, Gabe Wright and Caraun Reid at defensive tackle, but I suppose it could be worthwhile to add some extra veteran depth at the position just in case.