<Source: internet.>
For example,
| Name | Sales Skill | Performance Skill |
| Person 1 (P1) | 2 | 5 |
| Person 2 (P2) | 5 | 5 |
| Person 3 (P3) | 1 | 2 |
| Person 4 (P4) | 2 | 4 |
Sales Skill
^
5 I x P2
4 I
3 I
2 I x P4 x P1
1 I x P3
I----------I-------------I------------I-----------I-----------I-----------------------------------------------------------------> Performance Skill
1 2 3 4 5