Open space office is now a future trend, instead of screen partitons. It gives more flexibility, communication and less tension office environment.
To manage the cables and lines very neat and clear, you also need to manage the lines from the table tops. On this aspect, it needs your IT people to do it. After all table tops are positioned well. You people move it, the IT guys should arrange or teach people how to manage the cables. We have meet a lot of companies, they have good cable management, but seldom well use it. We also can provide the service to group the lines.