When starting off in Battrick, try and get your team of Medicore/comp players with the same consitency/concentration of Med/comp, also make sure they have decent stamina. Feeble + probs ( try and get higher. These type of players should be easy to buy as they don't go for much on the transfer market, 1000$ - 10000$ at most. So go buy some players, dosen't matter what age with stats I said before. Feeble + stam, Medicore/comp batting/bowling, and mediocre + in concentration/consetiency. Depends if your buying a bowler or batsmen. Batsmen = concentration. Bowler = Concstiency
Now for your traning, have 2 - 3 players like Kyle Waters above. 17 year olds with med/comp stats. And train them. 2 bowl, 1 stam, 1 field would be good for Kyle waters.
Look to by some sports physcoligists ( can't spell it ) later on to help train secondary stats.
Hope that helped..