Too many partners/MD and not enough "roll-up-sleeves" mentality
Wing scoping, reaource loading and pricing. When it comes to delivery, consultants are constantly surprised at utilization targets, scope, etc.
Not like traditional tier 1/2 firms where capability centres and BD back engines exist. You literally need to create templates from scratch on projects, and do end to end RFP responses (from reviewing the request in Ariva through to sourcing all certificates).
Many of the partners have not worked in professional consulting firms so they tend to cook up consulting ways-of-working without knowing best practices for team management, capability centres, business development and delivery management. This is due to Sia acquiring resource augmentation/flow through companies and keeping the partners (former owners) on.
