Mid-season turnaround story of the year: Jason Giambi
On May 11 of this year, Yankee slugger Jason Giambi was hitting .195 with a measly 3 homeruns and 6 RBIs. The team wanted to demote him to the minor leagues.
As of today, he is second in the league with a .996 OPS. For the unfamiliar, OPS (short for on-base percentage plus slugging percentage) is the offensive statistic that many think best summarizes a player's overall hitting performance.
Quite the turn-around.