Before taking on his new role at Grockit, Gilbert worked with Nivi to agree on how they would collaborate.

FORBES: Grockit Helps Groups Do Great on GMAT

Nivi found that if a student was struggling, he might be better off teaming up to study with three other students.

FORBES: Grockit Helps Groups Do Great on GMAT

That was the goal of Farb Nivi who started Grockit in 2007.

FORBES: Grockit Helps Groups Do Great on GMAT

Nivi and Gilbert communicate frequently and address their occasional conflicts efficiently.

FORBES: Grockit Helps Groups Do Great on GMAT

Nivi recently moved into the role of chief product officer and in October 2010 handed over the CEO reins to Roy Gilbert, a Stanford MBA. Before Grockit, Gilbert spent seven years at Google (GOOG).

FORBES: Grockit Helps Groups Do Great on GMAT

As Gilbert told me in a May 31 interview, before Gilbert started working there, he and Nivi took personality tests and worked with a leadership coach who facilitated a discussion about how each perceived the world and their approach to resolving conflicts.

FORBES: Grockit Helps Groups Do Great on GMAT