A portfolio manager is assessing the credit risk associated with a corporate bond. Unexpectedly, the credit rating of the bond issuer has been downgraded from 'A' to 'BB', indicating significant deterioration in creditworthiness. The portfolio manager must decide how to manage this increased risk within the portfolio.
The portfolio consists of various assets including corporate bonds, government securities, and equities. The credit spread has widened after the downgrade, signaling increased market perceptions of default risk. Using the modified duration of the bond along with current market data and the manager's investment horizon, the manager considers potential actions to mitigate the credit risk.
Which of the following strategies should the portfolio manager consider to effectively manage the credit risk associated with this downgraded bond?