Your team will spend a little more time tracking what they are doing, but the tracking does more than just show you who is working on what right now - it also forces your team to do the work in the proper order and follow the details. The outcome of this? You will not have to redo hours of work when mistakes are inevitably made.
Systems let you track what work got done so you can know who in your team is performing at high levels. What this means is you can run great three monthly performance reviews and know what your payroll is paying for.
Systems allow the work to get done much faster as the instructions are right there with the work. Your team may not be used to getting so much done and may fear getting fired. You could choose this, or you can just get twice as much done for the same payroll.. The choice is yours.