Risk management is a necessity to survive... but it doesn't generate ideas.
Ideas potentially generate alpha... which in combination with sound risk management generate profitable trades.
Just having a good risk management without any ideas, that's just gambling... flipping a coin with the added negative of transaction costs...
Theoretically, when you're just trading this way, 50:50 in direction... and your risk management hopefully kicks in with stoplosses at less costly than letting profits run. But, if you are in a sideways market which doesn't move much... than I'm pretty sure you're not going to be able to be profitable.
Therefore... your alpha generation will be in hitting the trends... so even with 50:50 you're profits can be run-up in a decent way.
So... in the end.... you still need to generate some kind of alpha by finding the trend....
@Buy1Sell2 is wrong... and
@sle and
@Pekelo are right... I rest my case....