Well, i think the credibility of any education comes from the type of people who have been trained and the quality of work they produce.... Without doubt, it can be said that there are more no. of management colleges than the engineering colleges and people have been opting management as a field, becuase they think a manager is paid much more than an engineer and hence this fact has led them to choose management over engineering.
I doubt whether it would correct to say that management is losing its creditability because inspite of the fact, that there are so many management colleges, the quality of education is still very good.... for most of the colleges
Moreover, with increasing population, the competition is getting tougher and tougher... and only the fittest of them are able to survive. Hence, it can be realised that the quality isnt declining. However, it should be realised that that the competition is tough mainly for the top ranking colleges and not for lower cadre colleges. Nevertheless, it gives a chance for the not-so-bright minds to shine themselves and become better.....