The Vikings haven't signed seven free agents in the past three hours, so clearly this day has been wasted.

OK, no, no. Just joking. Free agency takes time, and we can't forget they already locked up Matt Cassel and Everson Griffen, moves that were made official today. And they snagged DT Linval Joseph.

Outside of the usual suspects we have been hearing about for weeks, the most interesting name at least linked to the Vikings on Tuesday was Darren Sproles, the veteran pass-catching RB who appears destined to be let go by the Saints. Per a tweet from NFL Network's Albert Breer:

While running back certainly isn't the No. 1 position on the radar of many when it comes to the Vikings – it might be last, actually, because of Adrian Peterson – the idea of Sproles in purple is intriguing mostly because they haven't had a legitimate pass-catching running back in a really long time. Yeah, they used Percy Harvin some in the backfield, but most of his catches -- even the short ones -- came with him either in the slot or split wide.

Sproles averaged 77 catches a season over the past three years in New Orleans. The last time the Vikings had a running back who caught even 60 passes was Moe Williams in 2003.

Defense remains the top priority, but the notion of one more offensive weapon to fill this specific niche is intriguing to say the least.