What the previous poster is trying to get at is that a big-ticket buyback signals an inability to invest that sum in a way that will improve growth or profitability. The best move to increase EPS is invest in capital improvements to increase earnings. If you can deploy money effectively, that means you're also growing in the long-term. Reducing the number of shares via a buyback also increases EPS, but it doesn't improve the top line.
In other words, a buyback is a way to increase your (and the CEO's) earnings per share even in the midst of stalling growth. So what I'm getting out of the previous comment is: don't confuse a buyback with continued growth; it's actually a "cashing out" moment.