Help with Flex and DP

[splitveer]

Here is my situation. I am a newer coach wanting to use a Flex and DP in an ASA event. I don't want to get myself in a bind with this. So I am going to explain what I think is correct and hopefully some of you can give me some insight on the situation. Thanks in advance!!!!!

Here is my lineup card.

NO. Player Position
9 TK 1
18 BH 6
24 TW 2
14 TB 7
16 BM 3
10 MO 5
4 MB 8
7 NR DP
5 ER 9
11 ML 4 (FLEX) ***Sub NO. 23 for NO. 11***

Subs
2 BB
22 TB
23 CF

OK....I am going to move my Center Fielder (Position 8) to second Base (Position 4)
Then I am going to sub NO. 23 in for my flex (NO. 11) and they will play center field

Am I thinking correctly that I have ten positions and I can sub directly for each of them. So, If I have a flex then I can sub in for that flex. Now the new flex will play the field, but not bat. Hope this is all clear. Thanks for any input.