He says there is a difference of at least 10 to 1 between good and bad coders. Given the right tools I can make the difference 100 to 1.
True across all programming, I think. And having the right tools is so important.
I mostly work with 4GL embedded database languages. I can't begin to tell you the horrible sins committed against my poor innocent databases, especially by ODBC coders. It's not just more complicated things like foreign key referential integrity, even relatively simple things like multi-thread environment awareness and transaction scoping are routinely mucked up.
There are 10 crappy programmers out there for every good one. And of those 10, 9 will never ask the right questions to get better.