<p>Shyboy13, nobody ever said that just because a person is a great researcher means that he necessarily can’t teach. </p>
<p>However, what is true is that the more a school tends to emphasize research - to the point where tenure decisions and career reputation is made by research - the more that teaching tends to become neglected. The reality is that Berkeley is a school where professors tend to care far more about their teaching and to some extent their graduate-school teaching than they do their undergraduate teaching responsibilities. The fact is, there are a lot of professors at Berkeley teaching undergraduate classes who make no bones about the fact that they really don’t want to be doing it, they’re only doing it because they’re obligated to do so. They’d rather be back at the lab. </p>
<p>The fact is, most people in the world are really good at only one thing (at most). Very few people are really good at two completely different things. And the fact is, teaching and research really don’t have very much in common. The latter involves brilliant insights and tenacious stamina to discover something. The former involves charisma and communications ability, as well as the ability to empathize with people who aren’t as smart as you are, or in most cases aren’t as motivated as you are. Only a rare few people have both such skills. Population statistics dictates that if an organization tends to emphasize one, the other tends to suffer. This is why Justin Gatlin can win the 100m dash Olympic Gold medal but isn’t necessarily a great marathon runner. </p>
<p>It’s really a matter of population statistics. Are there some rare people in the world who have both skills? Of course there are. But that’s like saying that because I know somebody who smokes 2 packs a day and lived to be 100, so then smoking must not be dangerous. In general, the more that a school emphasizes research, the less that same school will be able to emphasize good teaching. Just like it’s very hard to find somebody who can run sprints really fast and also run marathons really fast. Do such people exist? Sure. However, if your organization emphasizes running sprints, then you will inevitably end up with guys who can run sprints really well, but are probably not so good at running marathons.</p>