Optimal Execution Strategy for Rebalancing

Alexandra is a portfolio manager for a large investment firm and is tasked with executing a significant equity order to rebalance her client's portfolio. She has identified potential inefficiencies in the market and is considering different execution strategies to optimize the trade. As she evaluates her options, she soon realizes that market conditions could greatly influence the effectiveness of each strategy. She wants to minimize market impact and transaction costs while ensuring timely execution of the trade.

Which execution strategy should Alexandra choose to effectively balance these considerations?