Most resumes start with an objective.
Often times, this is because a string of vague catch phrases that don't capture anything personal about the candidate are used instead of a coherent thought. You see a laundry list of cliches like self-motivated, hard-working, professional, energetic, and on and on and on.
Let's continue to beat two drums.
1. Being vague gets your resume thrown into the shred pile.
The personal objective, especially if it's the first thing a hiring manager is going to read, should be uniquely yours and it should have a purpose - which sets the tone for the rest of the resume.
Instead of something like:
Self-motivated and strong leader, seeking to grow in the field of leadership
Try something like:
Proven self-starter with a track record of assembling teams that have produced increased revenues, seeking to leverage existing leadership experience and build high-performing teams in the technology field.
You must move from vague to specific. Instead simply stating that you're a strong leader show it by indicating you have a track record of high-performing teams. And don't just say "leadership" if there's a field you're interested in.
Instead of sounding like you're wishful thinking, show the reviewer/interviewer that you have what it takes. Demonstrate the competency (ie strong leader, high performance, etc.) they want right out of the gate.
Finally, vague personal objectives leave the impression that you're using your resume for multiple jobs. There's nothing a hiring manager wants less than to feel like you're shopping around. That's why it's critical that you have individualized resumes for each job for which you apply.