Concerning the robot. First, let me say I've played many different computer games vs. the computer and the PB robot is smarter than most of those AI's.
Now you must submit lineups that are different than you home lineups.
1 - Make sure you split up your righties and lefties. I see so many lineups from owners that have 3 righties in a rows, then 4 lefties, etc. This makes it much easier to run my bullpen when I face your team since I always have a couple relievers with huge splits when I'm at home.
2 - Don't use relievers with huge splits on the road, or set them to long relief if you need to keep them on the 25 man roster. Use relievers that are .670 ROPS and .690 LOPS on the road as opposed to a .550 ROPS and 790 LOPS. The robot will have some problems finding the best matchups with the staff. If you are facing a team that will have 2/3's of its guys from one side of the plate or the other, than you can use these big split guys.
Simple formula for setting your pitching staff.
3 good relievers - 2 at short relief, 1 at middle relief, balance at long relief. Make sure the second best guy is the middle reliever.
4 good relievers - 2 at short relief, 2 at middle relief, balance at long relief. Make sure the second best guy is a middle reliever.
5 good relievers - 2 at short relief, 2 at middle relief, balance at long relief plus one closer. Only use this if 1 guy is head and shoulders above the rest. Best guy is closer, 2nd best guy at short relief, third best guy at middle relief.
Remember that if you are a good owner, then you should always have a better home lineup than a road lineup since you go last when it comes to choosing matchups for the starting lineup and for relievers being used.