If a portfolio is big enough, it may choose to decompose itself into a number of sub-portfolios.
This portfolio of sub-portfolios requires active portfolio management – identifying where there are gaps between sub-portfolios or where scopes need to be adjusted, where sub-portfolios are no longer required and should be decommissioned, or where new sub-portfolios need to be stood up, either to meet new demand, or where there are opportunities for efficiencies by extracting commonality from multiple sub-portfolios into one.
The most likely place to identify these potential needs is when assessing new demand – this process will flag where there are gaps, overlaps or missing sub-portfolios.