Hi Dear,
There are lot of motivational theories. These are not giving desired results in today's fast changing world where attracting new taletn and their retention is $1000 question.
Best facilities and handsome pay-packets will not motivate people. Now there is a need to either touch their hearts by possible means or there is a need to have a threat.
In case you are interested, please write to me, I shall share with you a unique technique to motivate a person and keep him/her motivated through out his/her life.
Good luck.