Nothing wrong with the SSO as long as it's called only occasionally as an unexpected play. But as we've learned the hard way in past seasons, when you rely on the SSO as a mainstay of your offense, it becomes predictable and very easy to defend.
Some offensive coaches love the SSO because it's run to the so-called "weak side," where there there's one less defender. What they forget is that, with less room to run on that side, the sideline becomes the missing extra defender. Defensive coaches know that, which is why they're comfortable with one less defender on that side.
If the defense anticipates the call, they don't even have to make a tackle. All they have to do is jam the running lanes and the ball carrier is forced out of bounds. In the past, we ran that play a thousand times for -2 to +2 yards. Not very productive when it becomes so predictable. Much more productive when when it's unexpected.