1) focused here is the particle form of the verb, also used as an adjective it describes the state (of the mind) of those managers, their mind is well focussed 2) this is verb (simple past) it describes the action of those managers, they were pointing/focussing their attention on something You just have to read more, including grammar books. 3) No, IMO, the passive is mainly a result of someone else on you, not of yourself on you. But it could be seen at the limit that way.
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