It played out exactly like the Douglas girls basketball team's last seven or eight matchups with perennial powerhouse Reed High School. The defending state champions built a big lead through the first half in the first round of the Northern Division I playoffs in Sparks Wednesday night, aided by tough inside points and some key outside shots. On the other side, Douglas struggled to find a rhythm with its half court offense and suffered the consequences on the scoreboard.And then everything changed.Trailing 22-5 coming out of halftime, and with nothing to lose, the Lady Tigers came out in an aggressive …