Wharton management professor Peter Cappelli’s most recent book — Why Good People Can’t Get Jobs: The Skills Gap and What Companies Can Do About It — has inspired a reaction from just about every group with a stake in today’s workforce: employers, employees, recruiters, academics and media commentators. Cappelli debunks the oft-repeated argument from employers that applicants don’t have the skills needed for today’s jobs. Instead, he puts much of the blame on companies themselves — including their lack of information about hiring and training costs — and on computerized applicant tracking systems that can make it harder, not easier, to find qualified job candidates. Cappelli, who is also director of Wharton’s Center for Human Resources , sat down with Knowledge at Wharton to talk about his book. Below is an edited transcript of the conversation. Knowledge at Wharton : Peter, thanks for joining us.…