Does the carbocation rearrangement in a SN1 reaction specify a change in degree?

I am asked to determine whether the following process is likely to involve a carbocation rearrangement or not:



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> ![impossible rearrangement](https://i.stack.imgur.com/4JKn1.png)
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> 
> 


I think it is possible through the rearrangement given above (though the rearrangement cannot become a secondary or primary carbocation). Can someone please clarify if the carbocation rearrangement specifies a change in degree?




The most common carbocation rearrangements involve [1,2] hydride or alkyl shifts. As a typical result a secondary carbocation is converted to a more stabilized tertiary carbocation.


**In the course of these reactions, the migrating group and the positive charge change place, they move to opposite directions.**


This is not the case in your example. 


I fail to see how your transformation can be described as a cationic rearrangement!


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