"I'm ready to let you go." That's just one line from Kobe Bryant's open letter/poem to "Dear Basketball," announcing that this, his 20th season in the NBA, would be his last. And now, the farewell tour for the All-Star guard, who's struggled this year alongside the Lakers. Bill Plaschke weighs in on the announcement. Full coverage is here. http://www.latimes.com/sports/lakers/