While my colleagues and I do our best to offer a projection of what the draft's , we all know there could be some surprises when the real deal gets underway on April 30. Things happen each year in the draft that few, if anyone, saw coming, and 2015 should be no different. So, what eyebrow-raisers might take place this time around? Here are five potential first-round surprises. These aren't predictions for what will happen. It's simply a look at five outcomes that would defy conventional wisdom and, at the same time, aren't completely inconceivable. 1. slides out of the top six I'm among those that believe Williams is the No. 1 prospect in the draft, but might he Trey Lyles Jersey slide a bit in Round 1? Most everyone expects the to take at No. 1. What if goes No. 2 (to the or a team that trades up)? The (No. 3), (No. 5) and (No. 6) all are consistently linked to the top edge rushers available, and most expect the (No. 4) to take a wide receiver. Could Williams, an interior defensive lineman, fall all the way to the at No. 7, who would most likely jump at the chance to pick him? I don't think Williams will fall that far, but it's not implausible. 2. trade up to No. 2 to land The have the ammo to make a move with two first-round picks (No. 12 and No. 19). They also have plenty of uncertainty at quarterback, even after taking in the first round a year ago. What if the decide they're tired of searching for an answer under center and view Mariota as the solution to their problems? Sure, there's been some speculation that Mariota could slide out of the top 10. Why trade up if he could be waiting for them at No. 12? Well, there's also been plenty of speculation that Mariota won't last past No. 2. To ensure they land him, perhaps the go all in and move up to No. 2 in a deal with the , who are said to be open to dealing, if the price is right. The should have as good a feel as any team for Mariota's abilities, as their quarterbacks coach, Kevin O'Connell, spent about six weeks preparing Mariota for the draft earlier this offseason, before he was hired by Cleveland. 3. draft a quarterback head coach Sean Payton knocked down rumors that the were considering trading up for , but he hasn't said they won't draft a quarterback. Mariota and are considered the only two quarterbacks worthy of a first-round selection this year. However, what if there's a QB who has Payton's eye this year that he believes he can groom to one day succeed ? The have the 31st overall pick (acquired from Seattle in the trade). Perhaps that's the spot where the third quarterback is picked. We've seen quarterbacks go higher than expected before. Could the make it happen this year for someone like UCLA's ? 4. Six wide receivers go in the first round Five wide receivers came off the board in the first round last year as part of a cla s at the position that could go down as one of the best of all time. This year, I have five wide receivers coming off the board in my latest first-round projection, but given the desire teams have for more offense and the succe s of the 2014 WR cla s, it's well within the realm of po sibility that a sixth WR goes in Round 1, which would be the most to go in the first round since 2009. The first-round WRs in my mock are Alabama's , Louisville's , West Virginia's , Arizona State's and UCF's . Colleague Lance Zierlein has those five WRs coming off the board before pick No. 20 . If those five come flying off the board that fast, would the WR-needy go for a pa s-catcher like Ohio State's at No. 26? 5. take a running back The might have bigger needs on defense, but running back is certainly an area where they could use some help. Detroit has had only one 1,000-yard rusher in the past decade ( in 2013), and they're trying to make do with and at running back for now. I don't think Georgia's , my , will be available when the are on the clock at No. 23, but the No. 2 back in the draft, Wisconsin's , might be. Detroit already has a potent offense, but adding Gordon would take some pre sure off of and and could make the unit even more explosive as it tries to keep pace with the likes of the . Follow Charles Davis on Twitter * .* Rudy Gay Jersey