I agree that our personality and our giftedness should fit with the personality and the need of the church.  However, I also believe that we can grow with a church to be what it needs for the future.  Too often, pastors leave rather than grow as was mentioned above.  Churches face pastoral change about every three years because that is the usual amount of time it takes for us to do everything we have done before or know how to do. While every church experiences a spurt of growth whenever a new pastor comes, it is really only the result of a new face being present and people checking out the “new kid on the block.” Often those people have come from a different church where they have been unhappy or frustratated.  When they get unhappy with you, they will move on to the next place. 
Growing is hard but I have found two effective ways of continuing to grow which I believe have helped me stay in my present church for almost 17 years.  The first is reading books.  It sounds simple but I am amazed at how often in talking to other pastors I find that they are not reading.  I mention books in particular.  Some have told me they read magazines and internet artilces but in reading a book rather than a five minute article, you are forced to focus on one theme for an extended period of time giving you opportunity to process the information effectively.  The second way I have had opportunity to grow is through continuing my education.  After having been out of school for about 20 some years, I decided to return to take my Masters degree.  I have been working on it for 7 years now and am almost done.  Fortunately, a school just a few hours away offers modular courses.  I complete one or two a year.  It has forced me to read books I would not choose to read and to learn about topics I would not have chosen to study.  My church helps with some of the cost which has been a great blessing. 
If you don’t grow, your church won’t grow.

Interesting comments in ministry transitions.  I am about to make one, after working in our church for more than 25 years, I realized that my vision for the church is taking me to a new direction.  After being a part of the church board as an elder, I found that my gifts and perception of the ministry were demanding for a change to fulfill personal ministry goals that no longer coincide with the visdion and direction of the church that I co-funded.  Instead of standing in the way of the church board and senior pastor.  I decided with my wife to seek another church were my vision can be nourished and eventually became a reality. It reminded me were the instance were Paul and Barnabas decided to go different ways (Acts 15:39) because of a disagreement.  God used both of them tremendously.  My point is, that sometimes you will disagree with you fellow brothers and sometimes for the benefit of the church, is better to step out the way. Any comments I will appreciate.

Perhaps our present organizational structure is one of the primary culprits to the ceaseless transitions in our ministries. 

I have often wondered how, in the first church in Jerusalem, twelve-plus apostles (governors), prophets (guiders), evangelists (gatherers), pastors (guarders), and teachers (grounders), could all work together for a number of years “under the same roof” and all their “needs” were being met (Acts 2:44-47), but, it is very difficult, if not impossible, get two or more equally gifted leaders to work together today to bring the churches to the “measure of the stature of the fullness of Christ?” (Acts 6:2; Acts 15:22,32)

The Lord set these giftings in the church to complete each other not compete with each other nor work in “isolation” of each other. (Eph. 4:11)

Much of our “stress” in ministry is because we won’t “let” Christ be the Head of the Church as we say He is.  Jesus is the Chief Apostle, the Chief Prophet, the Chief Evangelist, the Chief Pastor, and the Chief Teacher; as a matter of truth Christ is “all and in all.” (Acts 13:1)

Is the present “pastoral structure” a result of Acts 20:29,30?