The person in charge of reagents should be in charge of bringing out the necessary glassware and returning the reagents to the shelf. The person in charge of the computer entry should make sure the data recorded is what is required of the group in the computer. The 'manager' of the team should be in charge of the experiment, make sure the group stays on track, and make sure safety rules are adhered to. While it might be easy for any group member to jump up and get a reagent or write something down when they're free to do it, this leads to errors. For instance, someone not in charge of the reagents who takes it on themselves to fetch some chemicals from the shelf might forget to put them back, get the wrong chemical, or take time away from their own duties to go searching for a chemical that some other group is using.
Grades suffer from dis-organization, too.
The team manager is in charge of making sure everyone stays on track. B. Class Data, recording in the data sheets, etc. Be as specific as possible. Read what the group data sheets are asking of you, carefully. Refer to the class data to support your answer.