It's actually the network: CEO A is in trouble, investor B says "you need help, get help or we will get you out". A asks B "who can help", B says "Firm C know how to help you - know the managing partner there and he fixes stuff like this all the time".
This is code for "give C work or you will get sacked."
B will receive information and assistance from C, possibly a job himself in the future.
A will receive 12 - 36 more months of employment as CEO while she/he implements the change program proposed by C. A will get $4m -> $45m of pay for this. The change program will have a random impact, because there is no evidence that any of them are efficacious or applicable in any context - so they are randomly applied and even if they can help sometimes they don't mostly.
But, if you are smart you go along with this and don't argue because you absolutely will be forced out if you do. A, B and C all have more power than you, and they all have incentives in the millions of $ to do this.