McShay's 2018 NFL draft rankings: Top 10 prospects at every position

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The college football season is inching closer, which means the 2018 NFL draft will be here before you know it. The crew from Scouts Inc. and I spent the summer scouring tape and ranking the top draft prospects at each position.

I started last week with the defense, and so now it's time for the offense. And remember: These are preliminary rankings -- there's no telling who will emerge this season.

Click the links below to read our rankings of the positions we've evaluated so far:

DT | DE | OLB | ILB | CB | S | QB | RB | WR | TE | OL

Note: Underclassmen are marked with an asterisk.

Offensive linemen

1. Connor Williams, OT, Texas*

Grade: 90

A true junior who has started all 23 games in which he has appeared the past two seasons, Williams is a scheme versatile blocker. He anchors well, gets good initial hand placement and locks defenders out once he's latched on. He's our top offensive tackle prospect heading into the season.

2. Mike McGlinchey, OT, Notre Dame

Grade: 89

In 2016, McGlinchey moved from right to the left tackle spot vacated by Baltimore's first-round pick Ronnie Stanley. An above-average zone blocker, he plays angles well and gives good effort. Also has solid movement skills for his size (6-foot-7, 310). Has first-round potential, but needs to show it on a more consistent basis.

3. Quenton Nelson, OG, Notre Dame*

Grade: 88

Nelson is a road grader with the size (listed at 6-foot-5, 325 pounds), strength, polish and toughness to start immediately after he's drafted. He plays with a wide base and anchors well, and he picks up most blitzes and line stunts.

4. Billy Price, OG, Ohio State

Grade: 85

Price displays good awareness and is always looking to finish off defenders, seeking out extra contact. An experienced three-year starter heading into his senior year, he's a plug-and-play NFL starter who should be steady, even if he's never dominant.