How does Portis show that she is intelligent andhas good management skill ?

Portia and Nerissa, worried about their new husbands, tell Lorenzo that they are going to stay at a local monastery for a few days in order to pray. After Lorenzo and Jessica leave, Portia sends her servant Balthasar to her cousin Doctor Bellario with instructions that Balthasar should bring anything Bellario gives him to Venice. Portia then informs Nerissa that they are going to dress up as men and go to Venice in order to help their husbands.