Account Teamsare designed specifically for "collaborative selling," allowing multiple users to work together on a single Account. By using Account Teams, an administrator can define specific roles (e.g., Sales Engineer, Support Rep) and grant them varying levels of access (Read/Write or Read Only) to the Account and its related Opportunities and Case. To meet the manager's requirement of "streamlining" and "automatically adding" members, the administrator should encourage users to set upDefault Account Teams. Once a user defines their default team in their personal settings, they can click a single button to add that entire team to any Account they own. Sharing Rules (Option B) are typically too broad for this requirement because they apply to all records meeting a criteria, rather than specific collaborative groups61. The Role Hierarchy (Option C) provides vertical access but doesn't easily handle the horizontal, project-based access required for support reps and engineers working on specific accounts62. Permission Sets (Option D) grant functional permissions (what a user can do) but do not grant access to specific data records in a collaborative way63.