The sentence makes sense without the adverb:
Ms.Tanaka is the ideal leader for the project because she has worked
in both business management and textile design.
Which adverb modifies the declarative verb meaningfully?
At a previous or earlier time; before:
Previous experience is a major factor in measuring qualification for leadership, and according to the corpus, previous has quite a strong idiomatic connection to this declarative verb form has worked:
Ever has idiomatic connection to the phrase has worked, but according to the corpus the connection is mainly in interrogative, relative and conditional constructions:
- Who has ever worked in any hospital or medical facility?
- Sir Clive Woodward singled him out as the best he has ever worked with...
- The first thing the troubleshooter does is find out if the equipment has
According to the corpus, yet is used with the declarative verb phrase mainly in negative contexts:
- Enormous sums have been spent on huge fusion generators, but none has yet worked as a power source.
According to the corpus, especially and have very little idiomatic use with the declarative phrase has worked: