Question:
Furthermore, delegating authorities to front-line employees gives managers greater opportunities to concentrate on problems or policy-level issues.

Does it follow that "Managers need to watch their front-line employees at all times."?
Answer:
no

Question:
That's a voluntary sacrifice, and so (in the judgment of those who choose to buy) it must be more than compensated for by the benefits of ownership.

Does it follow that "There must be a lot of benefits to owning it."?
Answer:
it is not possible to tell

Question:
In resolving business issues, they were sometimes able to identify more efficient technical opportunities.

Does it follow that "They sometimes couldn't resolve business "?
Answer:
it is not possible to tell

Question:
Worker strikes and protests erupted in Poznan, and spread into armed confrontations in the streets.

Does it follow that "The protests in Poznan were all peaceful."?
Answer:
no