on the one hand

Clayton Christensen is saying that "50 percent of the 4,000 colleges and universities in the U.S. will be bankrupt in 10 to 15 years."

Fortunately, Christensen says that there is one thing that online education will not be able to replace. In his research, he found that most of the successful alumni who gave generous donations to their alma maters did so because a specific professor or coach inspired them.

Among all of these donors, "Their connection wasn't their discipline, it wasn't even the college," says Christensen. "It was an individual member of the faculty who had changed their lives."

"Maybe the most important thing that we add value to our students is the ability to change their lives," he explained. "It's not clear that that can be disrupted."