A simple check is to ask yourself: Do you know more about your trade today as compared to what you knew last year? If you are a lifter, do you know more about training and nutrition than you knew a year ago? If you work in construction are your skills better than they were a year ago? If not, why? Do you purposefully want to suck and be left behind? Or, do you already know it all?
If all you do is stay the same for three years you will not only lose value in the marketplace but with yourself. ~ Dave Tate
I believe this. I think about all of the people that I was training a year ago, or even six months ago, and how if I trained them now, it would be better. Now, that's not to say that I wasn't a good coach before, but in the time that's passed since then, I have learned more.
It's like Dave Tate said in the above quote, if you stay the same you will not only lose value in the marketplace but with yourself. Everyday the fitness industry is coming out with the new, best method for training and if you can't keep up, you're out. It's that simple. You need to make the decision, find the time and invest in your growth both personally and professionally, the return is worth it, but if you decide that it's not, politely step aside for those of us that do. We'll find you if we need you, you'll be in the same place we left you.