Added replacement for 'D' to 'DST' in Roster Position column of CSV template and included a print statement for verification.

app.py

@@ -252,6 +252,8 @@ if selected_tab == 'Data Load':
                 csv_template_df = pd.DataFrame(columns=['Name', 'ID', 'Roster Position', 'Salary'])
             else:
                 csv_template_df = pd.DataFrame(columns=['Nickname', 'Id', 'Roster Position', 'Salary'])
+                csv_template_df['Roster Position'] = csv_template_df['Roster Position'].replace('D', 'DST', regex=False)
+                print(csv_template_df[csv_template_df['Roster Position'] == 'DST'])
 
             st.download_button(
                 label="CSV Template",