Training camps have opened all across the NFL, and the annual preseason slate will soon be upon us. Considering these factors, it's time for NFL bettors to take a close look at some teams that may offer value before the games kick in for real.

Trends 

It's tough enough to handicap regular season games, so many bettors believe anyone wagering on preseason affairs is either an action junkie or simply delusional. Well, I am here to tell you that there might, just might, be something to reviewing recent history and formulating an approach for this preseason. 

I will now attempt to illustrate this by plucking a few gems from these very murky waters. Let's take a look and see if the way a coaching staff approaches preseason has anything to do with covering the point spread. Without further ado, let's take a peek. 

Let's talk about the coaches 

Let's face it, every coach will tell you that preseason games are nothing more than glorified tryouts for players on the bubble and a chance to remove the offseason rust for the battle tested veterans. But, doesn't every head coach want to see their team with a W at the end of the game? Hell, most of these guys would bury the Make-A-Wish kid in the team's charity mini-golf tournament. 

Join me, won't you, as we take a look at two coaches who traditionally have done well in the preseason. Please note, however, that these records are based on straight up wins and not against the spread (normally the team that wins these games winds up beating the small point spread assigned to the games as well.) Hey, you've gotta work with me here

Mike Shanahan (Washington Redskins)

Mike ShanahanOld Mr. Sunshine has a 40-19 record since 1997 in the preseason and he's 12-5 in Week 1. His Redskins mortgaged the future and then some for the opportunity to trot out RG3 in a 'Skins uniform. Do you really think Dan Snyder, executive director of the Billionaire's Boys Club, wants to lose on the road in Buffalo with all the attention and expectation that Washington fans will be demanding of their new savior? He's going to give Mike Shanahan a poison pill to swallow if they walk off the field and RG3 doesn't look like the second coming of Sonny Jurgensen. 

Also circle Wednesday August 29th  on your calendar since Shanahan is 11-3 in Week 4 of his preseason career. The Redskins will be hosting the lowly Tampa Bay Bucs, and this one could get ugly if Shanahan decides to turn the dogs loose.  

Bill Belichick (New England Patriots)

The man inside the hoodie has a rather pedestrian 18-18 mark in preseason weeks 2 - 4. In Week 1, however, he likes to make a statement. His teams are 9-4 since he's been a head coach (which includes his rather ignominious stint as the Browns field general); plus, the Pats will be hosting the scandal ravaged New Orleans Saints in Foxboro. 

This looks like a decent game to get down on the home team as the Saints are in complete disarray and the Patriots defense looks like it got a whole lot better from last season. New Orleans did not have many picks in this year's draft, but they do have Drew Brees all locked up for the next five seasons so that will give Who Dat Nation something to hang their collective hats on. Nevertheless, Tom Terrific is still stinging from his Super Bowl stupor and will look to start 2012 on a positive note. 

Bottom line 

I know there is a coterie of gamblers who profess that preseason is like stealing money. I've heard it before and I still don't buy it. However, there are sharpies who seem to make money wherever they go; if that happens to be preseason ball, where nobody knows how long the starters will run or if the scrubs getting the lion's share of the time will play themselves right into a 9 to 5 job, then God bless them. 

As for me, I'm going to sit back and watch the show. If I do decide that a game is worth a buck or two, then I'll consider it a cover charge to watch the game with a few friends of mine named Jack Daniels, Johnny Walker and, of course, my dear Old Grand Dad.