If the driving motivation for writing and crafting a speech is to use it as a crutch, then you are setting yourself for failure. What does this mean you might ask ? Unfortunately, handicapped individuals rely heavily on the use of crutches all the time in order to assist them in their day to day commutes. Without it, they'd be limp, and would struggle to get to where they needed to be. In contrast to this point, speakers shouldn't use the written script as a speaking alternative in an attempt to mask unpreparedness in front of a live audience. Writing out a speech word-for-word is pointless. From personal experience, speeches that have been entirely written out can prove to be a colossal detriment to the orator. Why ?
For the majority of time, your eyes are fixated on the page, not on the faces in the crowd. Unbeknownst to you, you've become personally detached with your listeners. With that being said, uttering verbatim the exact words can hurt the emotional impact of any talk. I'm not saying by a lot, but it could potentially disconnect you from the attendees in some capacity. Your speech comes off as rote and mechanical.
The time you spend focusing on the words could be time spent becoming personally invested in the source material. Allow your faith in the information to carry you along, and the rest will take care of itself.Therefore, your oration will come off as more natural and connected. -1orator