What would a big trade up for a WR mean?

With the NFL draft just days away, speculation remains heavy that the San Francisco 49ers are considered a prime candidate to move up in the draft.

Much of the speculation is that the 49ers are considering a move up from No. 30 overall for a receiver. I heard the talk Tuesday and ESPN Insider Adam Caplan reported on it as well.

Let's take a look at what such a move would mean:

Targets: Speculation revolves around LSU's Odell Beckham Jr. and Oregon State's Brandin Cooks. It would likely mean getting in the Nos. 12-20 range to get these players. Beckham will likely go higher than Cooks.

How much it would cost: Last year, the 49ers gave up No. 31 and No. 74 to go to No. 18 to take LSU safety Eric Reid. It would likely cost more this year, especially if it meant going from No. 30 to No. 14. But the 49ers have No. 56 and No. 61 in the second round and No. 77 and No. 94 in the third round to trade. So, they have the means to make a big deal up.

The message: If the 49ers trade up for a player like Beckham, it would mean the 49ers think they can win the Super Bowl with another dynamic piece of offense. A receiving group that includes Beckham, Anquan Boldin, Michael Crabtree and Vernon Davis would be pretty impressive. It would put pressure on Seattle, the 49ers' biggest obstacle in winning the NFC West and the Super Bowl. Another weapon would only expedite the maturation of quarterback Colin Kaepernick. I see the appeal in making this pick.

What it says about cornerbacks: If the 49ers make a big move up and it's for a receiver and not a cornerback, it means they don't like the cornerbacks expected to go in the first round. In that case, they would likely use their next picks (whatever ones are not part of the trade up) at cornerback. The 49ers need some help at cornerback. Right now their top cornerbacks appear to be Tramaine Brock, Chris Culliver and Chris Cook. They like second-year player Darryl Morris. But there is definitely a need for some rookies as well. But if this trade is made, it will not only mean the 49ers are ready to win on offense, but they think they can get some help at cornerback after the first round.

Scout's view: ESPN's Matt Williamson likes the idea: "I am a huge Beckham fan and think that is exactly the type of WR the 49ers need to target."