That system has little details you need to be fully aware of and train / discourage PPMs accordingly to really get the most from the system.
Note the right BBM gets forward more often than the left BBM. So make sure that midfielder is better offensively with finishing etc, and also has a PPM trained to get forward more often. Another PPM handy but for the left BBM is to switch play to the other flank. Make sure your players are capable of undertaking these PPMs successfully with their attributes also.
Additionally, make sure any players that have traits to slow the tempo down are discouraged as that goes completely against the design of the tactic.
Otherwise - invest in better quality going forward