Rebalancing a Diversified Portfolio

John is an investment advisor managing a diversified portfolio for a client. The portfolio consists of stocks, bonds, and alternative investments, with specific target allocations of 60% equities, 30% fixed income, and 10% alternatives. Due to a strong performance in the equities market, the current allocation has shifted to 70% equities, 25% fixed income, and 5% alternatives. John is considering the best strategy to rebalance the portfolio back to the target allocations.

Which rebalancing strategy should John employ to achieve the desired target allocations effectively?