Since Corey Hart was inserted into the leadoff spot for the Brewers he's gone 9-for-25 with two home runs, four stolen bases and four walks in seven games. If he keeps up that kind of production, there's a decent chance that he'll remain in the leadoff spot even after Rickie Weeks returns from the DL.
That he's played so well really isn't the strangest part. The thing that catches my attention is that Hart is 6 foot 6 inches tall. Can anyone think of a leadoff batter who was taller than Hart? It seems odd for someone so tall to bat at the top of the order, but here's probably why he's there - he's actually the fastest guy on the team.
Hart posted a 60-yard dash of 6.59 seconds during spring training, the fastest time on the team. He's nine for nine on stolen base attempts this season. The best comp for that type of size/speed combo I can think of off the top of my head is Dave Winfield. Were there any other players like that?