Who should take the penalties against Austria?

With captain and first choice penalty taker Robbie Keane out of the squad for the game against Austria tonight, the question has been going around on social networks of who should take a penalty if the ref does point to the spot during the game?
Examining the player stats this season, Keith Andrews has scored the most penalties of any Irish player this season, strangely all four of his goals have come from 12 yards. Of the players in the squad, starter Jonathan Walters has scored the most penalties, finding the back of the net twice from the spot, although he has missed two further penalties, most infamously in the same game he also scored two own goals and gave away a penalty. Of the other players in the squad, only Andy Keogh, Wes Hoolahan and Simon Cox have scored a penalty this season, with one conversion each.

*Robbie Keane's penalties all scored in the last MLS season

Player	Penalties
Keith Andrews	4
Jon Daly	3
Michael Spillane	3
Rhys Murphy	3
Shaun Williams	3
Adam Rooney	2
Jonathan Walters	2
Mark Byrne	2
Owen Garvan	2
Padraig Amond	2
Robbie Keane	2
Andy Keogh	1
Billy Clarke	1
Harry Arter	1
John O'Flynn	1
Lee Frecklington	1
Liam Lawrence	1
Martin Rowlands	1
Matt Doherty	1
Paul Heffernan	1
Richie Foran	1
Robbie Williams	1
Simon Cox	1
Wes Hoolahan	1

Robbie Keane's goals to date

Robbie Keane's 54 international goals to date are as follows

Date	Level	Home Team	Away Team	Time
14-October-1998	European Cup Qualifier	Republic of Ireland	Malta	16 18
1-September-1999	European Cup Qualifier	Republic of Ireland	Yugoslavia	54
8-September-1999	European Cup Qualifier	Malta	Republic of Ireland	13
13-November-1999	European Cup Play off	Republic of Ireland	Turkey	79
23-February-2000	Friendly	Republic of Ireland	Czech Rep	87
2-September-2000	World Cup Qualifier	Holland	Republic of Ireland	21
10-November-2001	World Cup Play Off	Republic of Ireland	Iran	50
13-February-2002	Friendly	Republic of Ireland	Russia	20
27-March-2002	Friendly	Republic of Ireland	Denmark	54
5-June-2002	World Cup Finals	Germany	Republic of Ireland	92
11-June-2002	World Cup Finals	Saudia Arabia	Republic of Ireland	7
16-June-2002	World Cup Finals	Spain	Republic of Ireland	9
21-August-2002	Friendly	Finland	Republic of Ireland	12
7-June-2003	European Cup Qualifier	Republic of Ireland	Albania	6
11-June-2003	European Cup Qualifier	Republic of Ireland	Georgia	58
18-November-2003	Friendly	Republic of Ireland	Canada	60 87
31-March-2004	Friendly	Republic of Ireland	Czech Rep	90
5-June-2004	Friendly	Holland	Republic of Ireland	45
4-September-2004	World Cup Qualifier	Republic of Ireland	Cyprus	5
13-October-2004	World Cup Qualifier	Republic of Ireland	Faroe Islands	14 3
16-November-2004	Friendly	Republic of Ireland	Croatia	24
4-June-2005	World Cup Qualifier	Republic of Ireland	Israel	11
1-March-2006	Friendly	Republic of Ireland	Sweden	48
15-November-2006	European Cup Qualifier	Republic of Ireland	San Marino	31 5 85
22-August-2007	Friendly	Denmark	Republic of Ireland	29 40
17-November-2007	European Cup Qualifier	Wales	Republic of Ireland	31
29-May-2008	Friendly	Republic of Ireland	Colombia	3
20-August-2008	Friendly	Norway	Republic of Ireland	44
15-October-2008	World Cup Qualifier	Republic of Ireland	Cyprus	5
11-February-2009	World Cup Qualifier	Republic of Ireland	Georgia	7 78
1-April-2009	World Cup Qualifier	Italy	Republic of Ireland	88
29-May-2009	Friendly	Republic of Ireland	Nigeria	38
5-September-2009	World Cup Qualifier	Cyprus	Ireland	83
11-November-2009	World Cup Play Off	France	Ireland	33
28-May-2010	Friendly	Republic of Ireland	Algeria	52 85
7-September-2010	European Cup Qualifier	Ireland	Andorra	54
8-October-2010	European Cup Qualifier	Ireland	Russia	72
26-March-2011	European Cup Qualifier	Ireland	Macedonia	21
24-May-2011	Nations Cup	Ireland	Northern Ireland	27 53
29-May-2011	Nations Cup	Ireland	Scotland	23
4-June-2011	European Cup Qualifier	Macedonia	Ireland	8 37
11-November-2011	European Cup Play-Off	Estonia	Ireland	71 88
7-September-2012	World Cup Qualifier	Kazakhstan	Ireland	89

Strangely, there's an equal number of goals scored in the first and second halves, 27 each.
He has scored 34 goals scored at home, 16 away from home, and 4 at neutral grounds.
34 goals were scored in competitive games, of these 20 were at home, 11 were away, and 3 were on neutral grounds.
Robbie Keane scores a goal, on average, in the 47th minute of a game

Irish Managerial Highs And Lows

was a little bored earlier, so I went through the history of Ireland games on soccerscene.ie to see who are the highest ranked teams defeated, and lowest ranked sides lost to by Irish managers in competitive games, by matching up the teams with the rankings on fifa.com
here are the results:
    

Manager           Highest Ranked   Lowest Ranked                    Team Defeated    Team Lost To Jack Charlton           Italy(4)     Austria(42) Mick McCarthy         Croatia(4)   Macedonia(85) Brian Kerr           Georgia(84) Switzerland(44) Steve Staunton      Slovakia(37)     Cyprus(103) Giovanni Trapattoni  Armenia(44)      Russia(25)