When he bought, he marvelled at how the CEO was targetting 20% returns on capital. When I heard this, I realised that Buffett had forgotten one of his lessons that he himself espoused: that companies that "target" returns on capital are should be avoided. IIRC, it was one of his reasons for bailing out of Fannie Mae (?). His timing was impeccible on that one, as the whole thing exploded not long thereafter in the 2008 financial crisis.
Also at the time of his purchase, it was known that the company was beginning to offshore. It struck me at the time that this could cheapen the whole thing and turn into a disaster.
So there were at least two facts at play here that should have forewarned Buffett that it might not be a good purchase. I was actually pretty astonished at the time that a guy as savvy as Buffett didn't seem to anticipate the problems ahead.
And now we come to the $64,000 question: how does a company add value to shareholders? It's a simple question, but I bet most won't know the answer to it. The answer is provided by Prof. Damodaran Aswath: a company adds value by targetting returns on capital in excess of the cost of capital, risk-adjusted.
So actually, doing stuff like maximising returns on capital is a sub-optimal goal. Not that you should invest in something marginal, either.
Another problem with these corporate-type guys is that they do a lot of "management by numbers". It's all about "KPIs" (Keypoint Indicators) and other "metrics".
Back when Motley Fool wasn't a shitpile that it is today, there was a guy in the UK that put together a portfolio of "family companies", i.e. quoted companies with a substantial management and/or family stake.
How did the companies fair? Very well, actually. The portfolio did great relative to the indices. Why? Well, my conclusion is that family-concentrated businesses were run conservatively as proper operating businesses, rather than a bunch mathematical formulae to be tweaked and fiddled with.