"There’s been talk about Edgerrin James, and we’ve spent some time evaluating that prospect," Loomis said. "We’ll continue to do that. We haven’t made any decision or closed any doors on acquiring another running back if we feel that’s something we need to do. We do feel a lot better about what we have in-house than people do outside of our building."

If it wasn't somewhat serious, why would Loomis admit it?

Rotoworld.com:
Saints GM Mickey Loomis revealed Wednesday that the club has had "internal discussions" about signing free agent Edgerrin James. Discussions would be expected, so it's hard to say how serious this is. They also talked up drafting Beanie Wells, then passed. Edge wouldn't be guaranteed a big role and isn't a better short-yardage runner than Pierre Thomas. Loomis, clearly wearing his bad idea jeans, will revisit the talks after this weekend's minicamp.