I dont think you will suffer any major setback if you decide to change.
i would just ensure that anhy transfers in and out make monetary sense.
this after all is still an economic simulator with BB players!
Cash is often king (unless you can sell out your stadium week in week out) and in the next few weeks a lot more interesting players will no doubt hit the TL. If you have cash great.. if not just keep plugging away with the guys you have...
also without checking out your major competitors you just need to be improving on and off the field faster than them.... if you do and are making better decisions on how to train and who to buy/sell you should start to pull ahead regardless of whether you have an inside/outside focus on your team...