The solution to continued growth is to do so both organically and by acquisition. And the bigger the acquisition, the harder it is to manage. It has been rumoured recently that Rentokil Initial may be interested in taking over food services company Compass. The company would fit reasonably well into their Property Services division. This is only rumour, and Fools never buy or sell companies on rumour alone.
Any acquisition is risky.
They could be forced into overpaying or find the business doesn't quite fit as management expected. A company that relies on acquisitions for its growth can be a risky company. Clive Thompson is one of the most respected Chief Executives around. His track record says it all. If he were to leave the company in the next 10 years, it would certainly have a detrimental affect on the share price.