Yes. Planning should take into consideration all the unexpected and unforeseen likely factors during the execution of plan well before in advance.

The heading of the topic is quoted by John Beckley in 1925. He was affectionately known as Mr B and was very successful business person and great visionary and he works good will of his employees. When he retires from his own company, he does not sell his profit making company but sells to all employees. He is an inspirations of integrity, dedication. 

Thank you for the extra information. Anyhow such quotes are relevant at any time to any country.

Yes, planning is the key to success, but planning can fail at times, even when you have buffer, backup and taken unforeseen conditions into considerations.

Planning makes things easier people who don't plan and make strategy before starting any new work often fail. Just planning is also not sufficient one has to follow it also to succeed.

Mousumi Ghosh wrote:

Yes, planning is the key to success, but planning can fail at times, even when you have buffer, backup and taken unforeseen conditions into considerations.

 

Thats where destiny plays a hand ...It is like a pond where throwing stone causes ripples when there are so many people involved some unforeseen ripple is bound to clash into ours and change its course, so we need to be prepared for such an event.However, under the normal circumstances planning and preparing helps ..

A sound planning always plays a key role in the success of a work. Achievers always think ahead about the likely road blocks and the ways to overcome those impediments. In planning successful people never be in a hurry. They take their own time to visualize all the factors that are likely to be encountered in their onward journey.. Very rarely one sees failure in such type of planning.