With Opening Day right around the corner, teams are still searching for holes to fill in their lineup or bullpen.There are several players on the free-agent list available who can make an impact with any MLB team like Derrek Lee, Johnny Damon and Vladimir Guerrero. If that option fails, there is always the possibility to make a trade.One of the biggest holes a team filled was seen through the Oakland A's signing of outfielder Manny Ramirez. GM Billy Beane said the team needed a cleanup hitter, so Ramirez was their guy.Here's a look at each team's needs entering the 2012 season. Begin Slideshow