Has capitalism become too gentle?

Is capitalism broken? The Financial Times argues the opposite - with Jonathan Guthrie and Dan McCrum claiming that the version we've currently got is too tame and that we should have allowed a greater number of businesses to fail in the aftermath of the global financial crisis.

Furthermore, they argue that we should look at the way in which large firms are able to establish themselves - and suggest that there's a case for an increasingly structural approach to market competition. Zombie companies get a mention - should more of them have been allowed to fail in an environment of higher interest rates?