"The Kennedy school is in a different and better place over the last 11 years because of what David Ellwood has done. He will be greatly missed. I look forward to his return to research on social problems; where I am sure he will make major contributions," Summers wrote.

In an interview Thursday, Ellwood said that he is looking forward to returning to teaching and researching at the Kennedy School following his sabbatical.

“This is a chance to get back into the domains that I care so deeply about and hopefully...find some answers that might make a difference,” Ellwood said.

Ellwood stressed that despite the official announcement of his impending resignation, he still has eight more months in his position and would like to continue his dedication to his faculty, staff, and and students.  

“I much prefer to be remembered as a tornado than a lame duck,” he added.

—Check TheCrimson.com for updates.

—Staff writer Forrest K. Lewis can be reached at forrest.lewis@thecrimson.com. Follow him on Twitter @ForrestKLewis.