-To acquire the card for uniform that requires you to defeat a team using a Single A club (for example, the '83 New York Mets), adjust your rosters by sending all the major league players down to Single A. Then, when playing an exhibition game, adjust the lineup of the team you are playing to sit star players on the bench, put people out of position, and start a reliever. You will then be able to easily defeat the team in a seven inning game under the rookie level and unlock the card. You can unlock more cards at the same time by using a team that you have not earned cards for as your Single A team and earn some of those cards as well.
-Use the following for unlocking cards that require defense.
Infield assists The position your player is playing is irrelevant; just that they accomplish the feat. If you are getting plenty of ground balls to short, move your third baseman (for example, Scott Rolen, Eric Chavez, Joe Crede) to shortstop to get the defensive assists. If there is a hard hit grounder or a slow runner, consider an extra throw to second (for example, 4-6-3) before going to first base to get an extra assist for your fielder.
Putouts If the card requires put outs (for example, Ronnie Belliard or Adam Kennedy), play them at first base. Every ground out to is a put out and you will unlock it quickly. Outfield diving/jumping: Considering moving your outfielders who need to make diving catches (for example, Aaron Rowand, Vernon Wells, Mike Cameron) to right or left field if more balls are being hit there to give yourself more opportunities to attempt these catches
Outfield assists For outfielders who require assists (for example, Jeff Francoeur or Pat Burrell), try playing them in right field and go for the 9-3 putout at first. Note: You can also play Pat Burrell at third base and still get the Pat Burrell card.
-Use the following for unlocking cards with winning percentage average.
Jerseys Several jerseys require you to come back after your winning percentage average drops below a certain percentage. To achieve this easily, start off as the home team. Allow the visitors to score one or two runs early (preferably with no outs) and your percentage should drop quickly. Pause the game and check the "Game Summary" then "WPA Stats" option to see where your percentage stands. Finish the inning then work your comeback.
Player of the game The player of the game is dependent on who has the best winning percentage average. It does not matter if a player goes 5-5 with three HRs; if they are not doing it when it counts they will not get player of the game. Get big hits that give you the lead or makes a close game out of reach. You can check out winning percentage average throughout the game by pausing game play and selecting "Game Summary" then "WPA Stats". Scroll over to see the current winning percentage average of each individual player. If someone else currently has a higher percentage and is keeping your desired player from being named player of the game, have them fail in a clutch situation and their winning percentage average will go down. WPA cards Some players (for example, Paul LoDuca, Mark Teahen, and Hank Blalock) require high winning percentage average to unlock their card. As mentioned previously, big hits in clutch situations will give them high winning percentage averages. Consider keeping them on the bench until they can get a big hit and an RBI that unties a game or puts you ahead when youare behind. Walk-offs are great for this.
-To unlock the cards for drawing walks (for example, J.D. Drew (2), Bobby Abreau, Brian Giles, Nick Johnson, Marlon Byrd), adjust the AI Pitching Difficulty in your game settings as follows.
AI Corner - Move the slider all the way to the right. By doing this, the pitcher is trying to paint the corners and is more likely to miss. AI Throw Strike Overall - Move the slider to the left. AI Throw Strike Ahead - Move the slider to the left. AI Throw Strike Behind - Move the slider to the left.
This will not guarantee that they will draw a walk right away. However, it is almost impossible to draw a walk when the sliders are at their default settings, even under the Rookie difficulty. Just take all the pitches and usually at some point within your four at bats in a game you will get the walk.
-For any pitcher who just needs to earn a save to unlock the card (for example, Jose Valverde, Joe Borowski, David Weathers, etc.), play a nine inning game and let them throw the last three innings. The Major League Baseball rule is that any pitcher who throws the last three innings are given a save, and that applies in this game as well. This is different from pitchers who are required to earn a save without giving up a hit (for example Billy Wagner). Make sure you know the stipulations for earning the card before putting your reliever in the game.