As potential picks scurry about the country trying to impress their potential future bosses, ESPN's Chad Ford checks in with his fourth mock of the year. We'll be keeping an eye on his projection for potential Celtics over the next month leading up to the draft:
Past selections:
* Mock, Version 1.0: Chris Singleton, Florida State
* Mock, Version 2.0: Jordan Williams, Maryland
* Mock, Version 3.0: Nikola Vucevic, USC
Here's more on Johnson in his ESPN draft profile: