HBO's president and COO Erik Kessler stated just last month that having à la carte access to HBO isn't going to happen in the near future, but it seems that the channel's CEO has been mulling a compromise. According to a new Reuters report, Richard Plepler believes that while HBO "has the right model today," HBO Go -- its standalone app -- "could evolve." In what way, you ask? Presently, HBO Go only shows content to folks who subscribe to the channel via their p