I liked pete and his style. I wonder if he and Lendl were actually clownish extroverts under a carefully fashioned stoic facade? Lendl either hid is true colours, had a personality transfusion, or was replaced by an alien double for reasons unknown (maybe to coach murray prior to colonization).
Lendl used to crack jokes all the time, his portrayal as "Ivan the Terrible" etc is mostly due to the Cold War and his relentless "show no mercy" style. I don't think he cared much for his public image and even if he did he could do little about it. I certainly think that he did not premeditate and shape his own image.
Of course, in real life, he was very funny, even a little bit goofy type of guy.