General Manager Rick Spielman continued his tour of collegiate pro days this morning, taking coach Mike Zimmer along to TCU.

Also among the pro days Spielman has been spotted at in the past few weeks are Baylor, Mississippi and Ohio State. What do those four schools have in common? Each has a wide receiver who is a first-round prospect.

According to Roster Watch, which has been covering the pro day circuit pretty extensively, Spielman has typically been one of the first, if not the very first, to take the field at these pro days so he can stake out a prime location to watch the wide receivers run through positional drills.

And today, Zimmer was hands-on, too, standing in as a defensive back as Spielman and the Vikings put star TCU wide receiver Josh Doctson, who profiles as the split end this offense lacks, through an on-field workout. Zimmer’s DBs will surely give him grief for his technique on this jam.

In addition to attending TCU’s pro day today, Zimmer was at Ohio State earlier this month. I’m not sure if Zimmer went to Baylor or Mississippi.

Of the consensus top five receiver prospects according to draftniks, the only one whom Spielman did not watch in person was speedster Will Fuller. And that is probably because Notre Dame held its pro day today, too.

Regardless, Spielman’s presence at the pro days for the other top wideouts could be something. Or it could be nothing. My gut says it’s something.

I’m sure some will suspect that this is merely a Spielman smokescreen, forgetting how much smoke there was last year around cornerback Trae Waynes, who was the Vikings’ eventual top draft pick at No. 11 overall.

As Bleacher Report draft analyst Matt Miller pointed out on this week’s Access Vikings podcast, Spielman and the Vikings have not been overly secretive when it comes to scouting potential first-round picks. Instead of being paranoid, they seem to be focused on simply nailing picks.

The Vikings will be getting another good look at Doctson next week. They are hosting him at their annual top-30 event at Winter Park, according to multiple reports. Mississippi’s Laquon Treadwell will also be there.

And while nothing has yet leaked out about Fuller, Ohio State’s Michael Thomas or Baylor’s Corey Coleman also being invited, it certainly would not be surprising if those guys came up here next week, as well.