After a long, long wait, the NBA's postseason has arrived, and, as always, intriguing storylines are bountiful. Here are three to keep an eye on:The bubble effect - The NBA's Orlando bubble has been the major storyline since play picked up again following the league's coronavirus pandemic-related hiatus. Now, the big question is what the manufactured home court advantage will mean. Crowd noise is pumped into give the "home" team an advantage, and those teams have won games after the restart at the same clip they did in the regular season, but it's a small sample size. Could this lead to more upsets, or will higher seeds still have that advantage?Are the Lakers in trouble? - LeBron James and the Los Angeles Lakers are still one of the favorites to win the title, but they've looked a little shaky since they got to Orlando, going 2-5 in their tune up games. There's reason to believe it was a fluke; the team had all but locked up the Western Conference's no. 1 seed and was shaking off months of rust, so it's reasonable they were a little sluggish. But their opponents, the Portland Trail Blazers, are one of the league's hottest teams, led by one of its hottest players, Damian Lillard....