The following skills and roles can be planned for the mobile machine learning project:

• Domain expert/specialist: Provides input on problem, data, features in data, business context, and so on
• Machine learning data scientist: Analyzes the data, does feature engineering and data preprocessing, and builds the machine learning model
• Mobile application developer: Utilizes the mobile machine learning model to build the mobile application
• Tester: Tests the model as well as the mobile application 

Here, each role can be learned by others through this book and can be performed by single or multiple people for successful implementation of the mobile machine learning project.