Paul Polman is the Bono of business. Unilever CEO sailing a green course is good for employees and is looking for investors who want to not only make a quick profit. But the pressure increases: Unilever is about to be acquired. Must Polman now sell his soul to bail out the Calvé- and Dove Producer? ,, Its sustainability strategy has generated much sympathy in the world. But the big question is whether he can hold on to this pressure, '' said Rob van Tulder.