With the influx of funds and resources, entrepreneurs can get sidetracked and forget their original goals and vision for the company.
Source: Sanjay Gupta 
These days entrepreneurs get a false feeling of success while the media makes them shine with their glorified stories. They get off track due to the following:
Speaking at Conferences, Colleges, and Incubation Centres
Ignore finances & over-reliance on investor funding
Focus on media & PR spends
Posture big as a startup while revenues lag
Start advising other startups & losing sight
Play Santa with the team offsite & goodies
Join clubs, and associations to Show off
Get sidetracked with unnecessary networking & not working
Lose business discipline with poor decision making
Summary
It's crucial for entrepreneurs to stay focused on their vision, make smart decisions, and maintain a level of discipline and structure in order to keep their companies on track.