@brianlittlejohn said:
I think what leads to roles being all over the place is IT people usually are very good at troubleshooting so they can go up to a problem with little prior knowledge and figure out what and how it is supposed to work and what could be causing it not to. Along with that (at least from personal experience) we don't have a fear of breaking stuff further, so we're inclined to dig into it further to find the issue.
Also, IT people tend to learn things by themselves very well and are always learning something new. At my job, I hear people talking about an issue that isn't necessarily an IT issue, but I always end up helping out which leads me to do things that would fall out of my normal job description.
This is also a big piece of it. The people who tend to gravitate to IT seem to be naturally gifted learners in many cases. We seem to often be the type of people who have the aptitude for any career we set our minds to and can be at least somewhat passionate about. I've done the exact same thing. What that brings in terms of benefit is understanding the business you support and how IT can meet the current needs and expand the business. Or even improve the efficiency of the current business.
But yes, our natural propensity for learning anything and everything, and being like I am in that we like to know things just for the sake of knowing them, can be both a blessing and a curse. However, if someone is motivated, that just means they move from L1 to L2 quickly, and maybe to L3 and up quickly as well. However, picking up new skills doesn't really change the definitions of the tiers. It changes the person's definition of where they are located within those tiers.