The Germany legend feels that the Bavarians don\'t need to strengthen their squad, and that their summer signings may need some time to adapt to the surroundings.Former Real Madrid and Borussia Monchengladbach player Gunter Netzer is of the opinion that Bayern Munich should not delve into the transfer market in the upcoming transfer window.Lack of depth is a charge often levelled at the Bavarians\' squad, leading to speculation that Jupp Heynckes could look for reinforcements in January.When asked by TZ whether Bayern should invest in new players in the upcoming transfer window, the 67-year-old was categorical:\"For God\'s sake, no! For example, [Jerome] Boateng is an outstanding solution for central defence and Manuel Neuer is one of the best signings ever.\"He and Rafinha have not yet settled as well as they had thought they would. They will probably need some time.\"Bayern Munich return to league action in 2012 with a trip to Borussia Monchengladbach on January 20.