George John managed like an engineer: If Rocket Fuel built the best product, they would win in a Darwinian competition with other firms. But in reality, best usually doesn't win in tech; the best managed firm wins. Rocket Fuel didn't realize that having a strong relationship with an advertiser and being a preferred vendor is more important than best. Novell Netware once dominated computer networking. Microsoft Windows Server (junk) beat Novell Netware (great) because they knew how to market, how to tie their product to other products, how to meet a checklist of features that non-IT managers would respond to. Best tech had nothing to do with it.
Hopefully, it's not too late for this firm to establish relationships with clients and sell something.
X+1 and Rocket Fuel Cross-Selling is going very well - they are selling their products to the customers they acquired from the other firm, and are gaining new sales they feel they couldn't have won if they hadn't merged.
Forgot: They're also feeling some pressure from agencies that are trying to do what Rocket Fuel does in-house, but they feel that their marketing efforts will overcome this because their current customers are enthusiastic - revenue from existing customers has increased 30%. They are going to switch from a maximum growth-rate mode to disciplined growth and profitability.