4-3-3 tactics

disadvantages:
-your midfield may get tired faster, to much space to covered up..
-more risk to let go goals, especially if they play wide, or have a good winger..
-three striker does not help much defending..

advantages:
-can score lots of goal
-great attcking moves
-your striker can be top scorer

as a conclucion, this tactics is only you have a very good defend,mid and striker..very good Does not mean that Man U , Chelsea, Real Madrid, but if you think that your team, (in League One) is one of the strongest team, then you can try this tactics..gudluck..