Teachers who are unable to improve in these areas, in spite of executed improvement plans, need to be removed from the profession.
He was unable to improve the situation.
He also sells shares when companies prove unable to improve their return on investment.
Detroit's problem is that it has been unable to improve management practices at all factories.
Leadership and management, including governance, are inadequate and have been unable to improve the school".
Germany — often considered the economic powerhouse of the continent — was also unable to improve performance.
He will be unable to improve because of a rib injury that has sidelined him for the past several weeks.
City under Guardiola were unable to improve on what has been a dismal record at Anfield over the years.
"The academy is unable to improve quickly enough because there are insufficient leaders and permanent teachers working in the academy.
Third, employing moving timeframe approach is unable to improve the investment performance at the model validation stage.
In contrast, transgenic mice were, on average, unable to improve their performance in finding the hidden platform over trials.
